Lesson 2 solving more complex algebra problems

Entry Activity – fill in the bubbles

Substitute

Today I will learn to solve simple problems using algebra Level 4

Challenge Objective:Use substitution to solve problems

Level 5

Key WordsSubstitute, Unknown, Generate, Term, Inverse,

Describe

•All will find unknowns in a level 4 problem•Most will use substitution to solve a level 5 problem•Some will find unknowns in triangle problems

Level 4

The yellow circles add together to make the pink squares.

There is only one answer and all the numbers are whole and positive.

Find A, B, C and D.

Level 4

Using your planners show me how you found this

Today I will learn to solve simple problems using algebra Level 4

Challenge Objective:Use substitution to solve problems

Level 5

Key WordsSubstitute, Unknown, Generate, Term, Inverse,

Describe

•All will find unknowns in a level 4 problem•Most will use substitution to solve a level 5 problem•Some will find unknowns in triangle problems

Level 4

Answers – Level 4

1 a A = 7, B = 4, C = 4, D = 7 b A = 8, B = 2, C = 3, D = 7 c A = 5, B = 6, C = 8, D = 9 2 a A = 6, B = 15, C = 12, D = 3 b A = 7, B = 10, C = 7, D = 4 c A = 3, B = 10, C = 15, D = 8

Using your planners show me how you found this

Today I will learn to solve simple problems using algebra Level 4

Challenge Objective:Use substitution to solve problems

Level 5

Key WordsSubstitute, Unknown, Generate, Term, Inverse,

Describe

•All will find unknowns in a level 4 problem•Most will use substitution to solve a level 5 problem•Some will find unknowns in triangle problems

Level 5

Level 5

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Level 5

Answers – Level 5

3 a B = 5, C = 3, D = 7 b B = 5, C = 2, D = 8 c B = 1, C = 3, D = 4 4 a B = 4, C = 7, D = 2 b B = 9, C = –2, D = 7 c B = 6, C = 8, D = –1

Using your planners show me how you found this

Today I will learn to solve simple problems using algebra Level 4

Challenge Objective:Use substitution to solve problems

Level 5

Key WordsSubstitute, Unknown, Generate, Term, Inverse,

Describe

•All will find unknowns in a level 4 problem•Most will use substitution to solve a level 5 problem•Some will find unknowns in triangle problems

Extension Activity - Level 5

Answers – Extension Activity Level 5

1 a A = 3, B = 5, C = 8 b A = 6, B = 7, C = 2c A = 13, B = 15, C = 20

2 The sum of the squares is double the sum of

the circles.

Using your planners show me how you found this

Today I will learn to solve simple problems using algebra Level 4

Challenge Objective:Use substitution to solve problems

Level 5

Key WordsSubstitute, Unknown, Generate, Term, Inverse,

Describe

•All will find unknowns in a level 4 problem•Most will use substitution to solve a level 5 problem•Some will find unknowns in triangle problems

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