4.0: Geometry

4.1: Geometrical Constructions - Sum of interior angles of polygons

By the end of the lesson, the learner should be able to:

- State the formula for sum of interior angles of polygons
- Calculate sum of interior angles and number of right angles in polygons
- Show interest in exploring polygon properties

In groups, learners are guided to:
- Draw triangles and measure interior angles
- Find sum of interior angles
- Divide sum by right angles
- Draw polygons with different numbers of sides
- Subdivide polygons into triangles
- Apply formula for sum of angles

How does the number of sides affect the sum of interior angles?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Ruler
- Protractor
- Pair of compasses
- Calculator

- Observation - Oral questions - Written assignments

4.0: Geometry

4.1: Geometrical Constructions - Exterior angles of polygons
4.1: Geometrical Constructions - Constructing regular triangles
4.1: Geometrical Constructions - Constructing regular quadrilaterals (squares)

By the end of the lesson, the learner should be able to:

- Define exterior angles of polygons
- Calculate sum of exterior angles and size of each exterior angle in regular polygons
- Appreciate the constant sum of exterior angles

In groups, learners are guided to:
- Draw polygons and measure exterior angles
- Calculate sum of exterior angles
- Verify sum equals one complete revolution
- Calculate exterior angle of regular polygons using formula
- Complete table of polygon properties

Why is the sum of exterior angles always constant for any polygon?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Protractor
- Ruler
- Calculator
- Chart showing polygon properties
- Pair of compasses
- Pencil
- Plain paper

- Observation - Written tests - Problem-solving tasks

4.0: Geometry

4.1: Geometrical Constructions - Constructing regular pentagons
4.1: Geometrical Constructions - Constructing regular hexagons and circles

By the end of the lesson, the learner should be able to:

- Recall that interior angle of regular pentagon is 108°
- Construct regular pentagon using ruler and protractor
- Show patience in multi-step constructions

In groups, learners are guided to:
- Draw line of given length
- Measure specified interior angle at one end
- Mark point along the line at given distance
- Repeat process at each new vertex
- Join last vertex to starting point to complete pentagon
- Verify all sides and angles are equal

Why is each interior angle of a regular pentagon 108°?

- MASTER Mathematics Grade 8 Learner's Book pg. 119
- Ruler
- Protractor
- Pencil
- Calculator
- Pair of compasses

- Observation - Practical construction - Written tests

4.0: Geometry

4.2: Coordinates and Graphs - Drawing labelled Cartesian plane
4.2: Coordinates and Graphs - Drawing Cartesian plane with different scales

By the end of the lesson, the learner should be able to:

- Define Cartesian plane and identify its components
- Draw and label a Cartesian plane with axes and origin
- Show understanding of coordinate system

In groups, learners are guided to:
- Draw horizontal line and label as x-axis
- Draw vertical line crossing at center and label as y-axis
- Mark intersection point as origin
- Number axes with positive and negative values
- Place arrows at ends of axes
- Discuss purpose of arrows

Why do we need two axes to locate points on a plane?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Pencil
- Digital resources
- Calculator

- Observation - Oral questions - Written assignments

4.0: Geometry

4.2: Coordinates and Graphs - Identifying points on Cartesian plane
4.2: Coordinates and Graphs - Plotting points on Cartesian plane

By the end of the lesson, the learner should be able to:

- Describe how to read coordinates of points
- Read coordinates of points on Cartesian plane correctly
- Show precision in reading coordinates

In groups, learners are guided to:
- Draw Cartesian plane and mark points
- Draw vertical line from point to x-axis to read x-coordinate
- Draw horizontal line from point to y-axis to read y-coordinate
- Write coordinates with x-value first, then y-value
- Practice reading multiple points in different quadrants

How do we describe the exact position of a point on a plane?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Pencil
- Worksheet with points
- List of coordinates

- Observation - Oral questions - Written assignments

4.0: Geometry

4.2: Coordinates and Graphs - Reading coordinates from graphs
4.2: Coordinates and Graphs - Generating table of values from linear equations

By the end of the lesson, the learner should be able to:

- Identify coordinates of plotted points on graphs
- Read coordinates from all four quadrants correctly
- Show accuracy in coordinate reading

In groups, learners are guided to:
- Examine graph with plotted points
- Write down coordinates of labeled points
- Identify points on x-axis and y-axis
- Match given coordinates to labeled points on graph
- Practice with various coordinate positions

What special coordinates do points on the axes have?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper with plotted points
- Ruler
- Pencil
- Practice worksheets
- Graph paper
- Calculator

- Observation - Written tests - Oral questions

4.0: Geometry

4.2: Coordinates and Graphs - Completing tables for linear equations
4.2: Coordinates and Graphs - Determining appropriate scale for graphs

By the end of the lesson, the learner should be able to:

- Identify given values in equation tables
- Complete given tables using equations accurately
- Demonstrate algebraic skills in context

In groups, learners are guided to:
- Complete tables for equations in various forms
- Substitute given values to find missing values
- Generate complete tables for different equations
- Practice with whole numbers and fractions
- Verify completed tables

How do different forms of equations affect table generation?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Calculator
- Pencil
- Exercise book
- Practice worksheets
- Graph paper
- Ruler
- Data tables

- Observation - Written tests - Oral questions

4.0: Geometry

4.2: Coordinates and Graphs - Drawing line graphs from tables
4.2: Coordinates and Graphs - Drawing graphs for various linear equations

By the end of the lesson, the learner should be able to:

- Recall steps for drawing line graphs
- Draw straight lines through plotted points using appropriate scale
- Show accuracy in graphing

In groups, learners are guided to:
- Generate table of values using given equation
- Choose suitable scale
- Plot coordinates on Cartesian plane
- Join plotted points using ruler
- Draw line graphs for various equations
- Verify line passes through all points

Why do linear equations produce straight line graphs?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Pencil
- Calculator
- Set of equations

- Observation - Practical construction - Peer assessment

4.0: Geometry

4.2: Coordinates and Graphs - Introduction to simultaneous equations graphically
4.2: Coordinates and Graphs - Solving simultaneous linear equations graphically

By the end of the lesson, the learner should be able to:

- Define simultaneous equations
- Identify point of intersection of two lines as solution
- Show interest in graphical methods

In groups, learners are guided to:
- Solve simultaneous equations algebraically
- Draw graphs of both equations on same axes
- Identify where lines intersect
- Read coordinates of intersection point
- Compare graphical solution to algebraic solution

How can graphs help us solve two equations together?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Calculator
- Number cards
- Pencil

- Observation - Oral questions - Written assignments

4.0: Geometry

4.2: Coordinates and Graphs - Practice solving simultaneous equations with different forms
4.2: Coordinates and Graphs - Applying simultaneous equations to real-life problems

By the end of the lesson, the learner should be able to:

- Identify equations with decimal and fractional coefficients
- Solve various forms of simultaneous equations graphically
- Show proficiency in graphical methods

In groups, learners are guided to:
- Solve equations with integer coefficients
- Work with decimal coefficients
- Handle equations with fractions
- Practice with different forms
- Compare solutions for accuracy

How do decimal coefficients affect the graphing process?

- MASTER Mathematics Grade 8 Learner's Book pg. 147
- Graph paper
- Ruler
- Scientific calculator
- Pencil
- Calculator
- Real-life problem cards

- Observation - Written tests - Problem-solving tasks

4.0: Geometry

4.3: Scale Drawing - Representation of length to given scale
4.3: Scale Drawing - Converting actual length to scale length

By the end of the lesson, the learner should be able to:

- Define scale and its purpose
- Determine scale from given measurements
- Show understanding of proportion

In groups, learners are guided to:
- Compare sizes of objects and their representations
- Discuss need for scale in drawings
- Measure actual dimensions
- Choose appropriate scale for representations
- Calculate scale from given information
- Express scale in different forms

Why do we need scale when drawing large objects?

- MASTER Mathematics Grade 8 Learner's Book pg. 160
- Ruler
- Tape measure
- Pencil
- Drawing paper
- Calculator
- Conversion tables

- Observation - Oral questions - Practical tasks

4.0: Geometry

4.3: Scale Drawing - Converting scale length to actual length
4.3: Scale Drawing - Interpreting linear scales in statement form

By the end of the lesson, the learner should be able to:

- Explain the process of converting scale to actual measurements
- Convert scale measurements to actual measurements accurately
- Show systematic calculation approach

In groups, learners are guided to:
- Measure lengths on scale diagrams
- Use given scales to find actual lengths
- Calculate actual distances
- Work with different unit conversions
- Practice reverse calculations

How do we find real dimensions from scale drawings?

- MASTER Mathematics Grade 8 Learner's Book pg. 160
- Ruler
- Calculator
- Scale drawings
- Pencil
- Maps with linear scales
- Sample plans

- Observation - Written tests - Practical tasks

4.0: Geometry

4.3: Scale Drawing - Writing linear scales in statement form
4.3: Scale Drawing - Interpreting linear scales in ratio form

By the end of the lesson, the learner should be able to:

- Recall the format for writing scales in statement form
- Express scales in statement form clearly and accurately
- Demonstrate understanding of scale notation

In groups, learners are guided to:
- Express given scales in statement form
- Write statements using proper format
- Practice with scales showing various divisions
- Convert linear scales to statements
- Discuss advantages of statement form

Why is statement form useful for describing scales?

- MASTER Mathematics Grade 8 Learner's Book pg. 160
- Ruler
- Linear scale examples
- Pencil
- Drawing paper
- Calculator
- Conversion charts

- Observation - Written tests - Practical tasks

4.0: Geometry

4.3: Scale Drawing - Writing linear scales in ratio form
4.3: Scale Drawing - Converting scale from statement to ratio form

By the end of the lesson, the learner should be able to:

- State the requirements for writing scales in ratio form
- Write scales in ratio form correctly without units
- Demonstrate accuracy in conversions

In groups, learners are guided to:
- Complete tables converting statement to ratio form
- Convert scales with various measurements
- Write map scales in ratio form
- Calculate ratios for different scenarios
- Practice systematic conversions

How do we ensure accuracy when converting to ratio form?

- MASTER Mathematics Grade 8 Learner's Book pg. 160
- Calculator
- Conversion tables
- Pencil
- Practice worksheets
- Ruler
- Unit conversion chart

- Observation - Written assignments - Problem-solving

4.0: Geometry

4.3: Scale Drawing - Converting scale from ratio to statement form
4.3: Scale Drawing - Making scale drawings with calculations

By the end of the lesson, the learner should be able to:

- Explain the process of converting ratio to statement form
- Convert ratio form scales to statement form using appropriate units
- Demonstrate understanding of both forms

In groups, learners are guided to:
- Convert ratio scales to statement form
- Determine appropriate units for actual measurements
- Express scales clearly in words
- Practice with various ratio scales
- Choose suitable units for statements

How do we choose appropriate units in statement form?

- MASTER Mathematics Grade 8 Learner's Book pg. 160
- Atlas
- Calculator
- Ruler
- Pencil
- Drawing paper

- Observation - Problem-solving - Oral questions

4.0: Geometry

4.3: Scale Drawing - Scale drawings with distance calculations
4.3: Scale Drawing - Using maps and demonstrating scale

By the end of the lesson, the learner should be able to:

- Recall how to measure distances on drawings
- Make scale drawings involving multiple distances and calculate actual distances
- Show systematic approach to problem-solving

In groups, learners are guided to:
- Make scale drawings involving multiple points
- Use suitable scales for given distances
- Measure lengths on scale drawings
- Calculate actual distances from drawings
- Apply geometric principles where needed
- Verify measurements

How do scale drawings help solve distance problems?

- MASTER Mathematics Grade 8 Learner's Book pg. 160
- Ruler
- Pair of compasses
- Calculator
- Graph paper
- Atlas
- Maps
- Digital resources

- Observation - Practical tasks - Problem-solving

4.0: Geometry

4.3: Scale Drawing - Application problems with scale
4.3: Scale Drawing - Using ICT for scale and maps

By the end of the lesson, the learner should be able to:

- Identify given information in scale problems
- Solve complex problems involving scale, area, volume, time and speed
- Show advanced problem-solving skills

In groups, learners are guided to:
- Solve problems involving height and scale
- Find scales used in given scenarios
- Calculate areas from scale diagrams
- Determine time and speed using map scales
- Work with various measurement scenarios
- Apply multiple concepts together

How do professionals use scale in their work?

- MASTER Mathematics Grade 8 Learner's Book pg. 160
- Calculator
- Ruler
- Problem cards
- Reference materials
- Digital devices (tablets/computers)
- Internet access
- Digital mapping software
- Projector

- Observation - Problem-solving - Written tests

4.0: Geometry

4.4: Common Solids - Identifying common solids from environment
4.4: Common Solids - Properties of solids (faces, edges, vertices)

By the end of the lesson, the learner should be able to:

- Name common solids: cubes, cuboids, cylinders, pyramids and cones
- Classify solids by their properties
- Show awareness of geometric shapes in environment

In groups, learners are guided to:
- Collect objects from environment
- Group objects by shape categories
- Identify properties of each solid type
- Discuss examples in daily life
- Create display of classified solids

Where do we see these solids in our daily lives?

- MASTER Mathematics Grade 8 Learner's Book pg. 176
- Collection of solid objects
- Models of solids
- Pictures of buildings
- Digital images
- Ruler
- Labels
- Worksheet

- Observation - Practical classification - Oral questions

4.0: Geometry

4.4: Common Solids - Sketching nets of cubes
4.4: Common Solids - Sketching nets of cuboids

By the end of the lesson, the learner should be able to:

- Define the term "net" of a solid
- Sketch nets of closed and open cubes
- Demonstrate spatial visualization

In groups, learners are guided to:
- Label cube vertices
- Cut cube along specified edges
- Lay out faces on flat surface
- Sketch net showing all faces for closed cube
- Sketch net showing appropriate faces for open cube
- Identify different possible net arrangements

How does a 3D cube transform into a 2D net?

- MASTER Mathematics Grade 8 Learner's Book pg. 176
- Model cubes
- Scissors/razor blade
- Ruler
- Pencil
- Plain paper
- Model cuboids
- Grid paper

- Observation - Practical construction - Peer assessment

4.0: Geometry

4.4: Common Solids - Sketching nets of cylinders
4.4: Common Solids - Sketching nets of pyramids

By the end of the lesson, the learner should be able to:

- Identify components of cylinder nets
- Sketch nets of closed and open cylinders
- Understand curved surface as rectangle
- Show understanding of cylinder properties

In groups, learners are guided to:
- Cut cylinder to remove bases
- Cut along height to open curved surface
- Observe curved surface forms rectangle
- Note rectangle dimensions relate to circumference
- Sketch nets for closed and open cylinders
- Label components

Why does the curved surface become a rectangle?

- MASTER Mathematics Grade 8 Learner's Book pg. 176
- Model cylinders
- Scissors/razor blade
- Ruler
- Pair of compasses
- Pencil
- Model pyramids
- Drawing paper

- Observation - Practical construction - Oral questions

4.0: Geometry

4.4: Common Solids - Sketching nets of cones
4.4: Common Solids - Matching solids to nets and vice versa

By the end of the lesson, the learner should be able to:

- Identify components of cone nets
- Sketch nets of cones showing sector shape
- Appreciate relationship between arc and circumference

In groups, learners are guided to:
- Cut base from cone
- Cut curved surface along slant height
- Observe curved surface forms sector
- Note relationship between arc length and base circumference
- Sketch net showing circle and sector
- Label components

Why does the cone's curved surface form a sector?

- MASTER Mathematics Grade 8 Learner's Book pg. 176
- Model cones
- Scissors/razor blade
- Protractor
- Pair of compasses
- Pencil
- Various nets
- Model solids
- Ruler
- Matching cards

- Observation - Practical construction - Written assignments

4.0: Geometry

4.4: Common Solids - Surface area of cubes from nets
4.4: Common Solids - Surface area of cuboids from nets

By the end of the lesson, the learner should be able to:

- State the formula for surface area of cube
- Calculate total surface area of cube from its net
- Show systematic calculation approach

In groups, learners are guided to:
- Measure sides of cube
- Sketch net of cube
- Calculate area of one face
- Multiply by number of faces
- Practice with cubes of different dimensions
- Verify by drawing net and calculating

How does knowing one side help find total surface area?

- MASTER Mathematics Grade 8 Learner's Book pg. 176
- Model cubes
- Ruler
- Calculator
- Pencil
- Net templates
- Model cuboids
- Grid paper

- Observation - Written tests - Problem-solving

4.0: Geometry

4.4: Common Solids - Surface area of cylinders from nets
4.4: Common Solids - Surface area of pyramids from nets

By the end of the lesson, the learner should be able to:

- State components of cylinder surface area
- Calculate total surface area of cylinder from nets
- Demonstrate formula application

In groups, learners are guided to:
- Identify net components
- Calculate area of circular faces
- Find rectangle dimensions using circumference
- Calculate rectangular area
- Add areas for total surface area
- Practice with different dimensions

How is the circumference used in finding surface area?

- MASTER Mathematics Grade 8 Learner's Book pg. 176
- Model cylinders
- Ruler
- Calculator
- Pair of compasses
- Formula chart
- Model pyramids
- Pencil
- Net templates

- Observation - Problem-solving - Written tests

4.0: Geometry

4.4: Common Solids - Surface area of cones and distance on surfaces
4.4: Common Solids - Making models of hollow solids (cubes and cuboids)

By the end of the lesson, the learner should be able to:

- State formula for surface area of cone
- Calculate surface area of cone from net and determine shortest distances on solid surfaces
- Show advanced spatial reasoning

In groups, learners are guided to:
- Identify cone net components
- Calculate circular base area
- Calculate sector area using given angle
- Find total surface area
- Open cuboid into net to find paths between points
- Measure distances along net surface

How does opening a solid help find distances on its surface?

- MASTER Mathematics Grade 8 Learner's Book pg. 176
- Model cones and cuboids
- Protractor
- Calculator
- String
- Scissors
- Manila paper
- Ruler
- Pencil
- Glue/paste
- Colored markers

- Observation - Problem-solving - Practical tasks

4.0: Geometry

4.4: Common Solids - Making models of cylinders, cones and pyramids
4.4: Common Solids - Using IT devices and drawing technology

By the end of the lesson, the learner should be able to:

- Explain steps for making different hollow models
- Construct hollow cylinder, cone and pyramid models
- Show precision and craftsmanship

In groups, learners are guided to:
- Draw cylinder net with calculated dimensions
- Construct cone net with appropriate sector angle
- Draw pyramid net with correct measurements
- Cut and fold to form solids
- Paste edges to complete models
- Display and compare models

How do we ensure the cylinder's rectangle matches the circle?

- MASTER Mathematics Grade 8 Learner's Book pg. 176
- Manila paper
- Pair of compasses
- Protractor
- Ruler
- Scissors
- Glue
- Computers/tablets
- Internet access
- GeoGebra software
- Projector
- 3D modeling apps

- Observation - Practical construction - Written reflection

5.0: Data Handling and Probability

5.1: Data Presentation and Interpretation - Collecting data and drawing bar graphs
5.1: Data Presentation and Interpretation - Drawing bar graphs with suitable scale
5.1: Data Presentation and Interpretation - Interpreting bar graphs
5.1: Data Presentation and Interpretation - Drawing line graphs

By the end of the lesson, the learner should be able to:

- Define bar graph and identify its components
- Collect data from own experiences and draw bar graphs with suitable scale
- Appreciate the use of graphs in presenting data

In groups, learners are guided to:
- Collect data from class members on given characteristics
- Fill data in tables
- Choose suitable scale for collected data
- Draw bar graphs to represent collected data
- Compare graphs with other groups
- Discuss components of bar graphs

How can we represent collected data visually?

- MASTER Mathematics Grade 8 Learner's Book pg. 197
- Ruler
- Graph paper
- Pencil
- Data collection sheets
- Calculator
- Data tables
- Sample bar graphs
- Question sheets

- Observation - Practical tasks - Oral questions

5.0: Data Handling and Probability

5.1: Data Presentation and Interpretation - Interpreting line graphs
5.1: Data Presentation and Interpretation - Identifying mode of discrete data
5.1: Data Presentation and Interpretation - Calculating mean of discrete data
5.1: Data Presentation and Interpretation - Working out averages from different sets

By the end of the lesson, the learner should be able to:

- Explain how to read values from line graphs
- Interpret line graphs to extract information
- Show analytical skills in reading trends

In groups, learners are guided to:
- Read values at specific points on graph
- Identify highest and lowest values
- Determine trends from line graphs
- Calculate totals from graph data
- Answer questions based on line graphs
- Discuss patterns observed

How do line graphs help us see changes over time?

- MASTER Mathematics Grade 8 Learner's Book pg. 197
- Sample line graphs
- Ruler
- Pencil
- Question sheets
- Number cards
- Exercise books
- Data sets
- Calculator
- Problem cards

- Observation - Written tests - Problem-solving

5.0: Data Handling and Probability

5.1: Data Presentation and Interpretation - Determining median of discrete data
5.1: Data Presentation and Interpretation - Using IT for data presentation and calculations

By the end of the lesson, the learner should be able to:

- Define median and explain the process of finding it
- Determine the median of discrete data for odd and even sets
- Show systematic approach in finding median

In groups, learners are guided to:
- Arrange data in ascending or descending order
- Identify middle value for odd sets
- Calculate median for even sets by averaging two middle values
- Practice finding median for various data sets
- Compare median with mode and mean
- Discuss applications

Why must data be arranged in order before finding the median?

- MASTER Mathematics Grade 8 Learner's Book pg. 197
- Number cards
- Pencil
- Exercise books
- Calculator
- Computers/tablets
- Spreadsheet software
- Internet access
- Projector
- Data sets

- Observation - Oral questions - Written tests

5.0: Data Handling and Probability

5.2: Probability - Identifying events involving chance in real life
5.2: Probability - Discussing likely and unlikely events

By the end of the lesson, the learner should be able to:

- Define chance and probability
- Identify events involving chance in daily life
- Show awareness of probability in real situations

In groups, learners are guided to:
- Discuss possibilities in various scenarios
- Identify chance events in sports
- Recognize chance in weather predictions
- Discuss chance in games
- List daily events involving chance
- Share observations with class

What is chance and where do we encounter it in daily life?

- MASTER Mathematics Grade 8 Learner's Book pg. 210
- Pictures of chance events
- Pencil
- Chart paper
- Real-life scenario cards
- Likelihood scale chart
- Event cards
- Exercise books

- Observation - Oral questions - Class discussion

5.0: Data Handling and Probability

5.2: Probability - Performing chance experiments
5.2: Probability - Writing experimental probability outcomes

By the end of the lesson, the learner should be able to:

- Define chance experiment
- Perform chance experiments such as flipping coins, tossing dice, and drawing objects
- Show interest in hands-on probability activities

In groups, learners are guided to:
- Obtain coins and flip them
- Toss dice and record outcomes
- Draw colored balls or beads from bags
- Use spinners and record results
- Record outcomes from experiments
- Compare results with other groups
- Discuss patterns observed

What are the possible outcomes when we perform chance experiments?

- MASTER Mathematics Grade 8 Learner's Book pg. 210
- Coins
- Dice
- Colored balls/beads
- Bags
- Spinners
- Recording sheets
- Number cards
- Pencil
- Exercise books

- Observation - Practical tasks - Oral questions

5.0: Data Handling and Probability

5.2: Probability - Expressing probability outcomes as fractions
5.2: Probability - Expressing probability as decimals and percentages
5.2: Probability - Using IT to play probability games
5.2: Probability - Using IT to play probability games

By the end of the lesson, the learner should be able to:

- State the formula for probability as a fraction
- Express probability outcomes as fractions accurately
- Show understanding of favorable outcomes

In groups, learners are guided to:
- Identify total possible outcomes
- Identify favorable outcomes
- Express probability as fraction of favorable to total outcomes
- Simplify probability fractions
- Calculate probabilities from various scenarios
- Solve word problems involving probability
- Verify answers

How do we express the chance of an event happening as a fraction?

- MASTER Mathematics Grade 8 Learner's Book pg. 210
- Colored balls/beads
- Bags
- Calculator
- Pencil
- Exercise books
- Conversion charts
- Computers/tablets
- Internet access
- Probability apps/software
- Projector
- Recording sheets

- Observation - Written assignments - Problem-solving tasks