Solving for a variable

Very Beginning -

Why are there letters in this math problem!?

The videos below will help you get started if you've never learned about variables in math before.

Lesson -3

Lesson -2

Lesson -1

Beginning

A beginning-level 8th grader can fluently solve variable equations that require one step

Level 1 - Equations involving addition

Level 2 - Equations involving multiplication

Level 3 - Equations involving subtraction

Level 4- Equations involving division

Developing

A developing-level 8th grader can fluently solve variable equations that

1) require two steps

2) that have any rational numbers in them (including fractions, decimals, and negative numbers)

Level 5- Equations involving two operations

Level 6 - Equations with negative variables

Level 7 - Equations with negative coefficients

(Part 1)

(Part 2)

Level 8 - Equations with negative constants

Level 9 - What if there's a decimal in the equation!?

Level 10 - What if there's a (gulp) fraction in the equation!?

DEVELOPING ASSESSMENT

complete the developing level assessment before starting level 11

Proficient

A proficient-level 8th grader can fluently solve variable equations that:

1) require the distributive property

2) require combining like terms

3) have any rational numbers in them (including fractions, decimals, and negative numbers)

Level 11 - Combining Like Terms on One Side

You Do Together - Level 11

Level 12 - Distributive Property

You do together - Level 12

Level 13 - Distributing AND Combining

Level 14 - Distributing A Negative

You Do Together - Level 14

Level 15 - What if there's a decimal in an advanced equation?

Level 16 - What if there's a (gulp) fraction in an advanced equation?

PROFICIENT ASSESSMENT

complete the proficient level assessment before starting level 11

Distinguished

A distinguished-level 8th grader can fluently solve variable equations that

1) have variables on both sides

2) have any rational numbers in them (including fractions, decimals, and negative numbers)

3) have no solutions

4) have infinitely many solutions

Level 17 - "Positive" variables on both sides

Level 18 - Opposite sign coefficients on the two sides

Level 19 - Weird Situations (No solutions and infinitely many solutions)

Level 20 - Recognizing how many solutions an equation will have (without solving it)

DISTINGUISHED ASSESSMENT

complete the distinguished level assessment AND YOU'RE DONE!