Mathematics Class 8
Algebra Play
Split, join, multiply and factor algebra terms, and check every rewrite with a number.
15 lessons · ~102 min total
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Lessons in this topic
- 0 Start here Terms, joining, multiplying, a square in four pieces, and factoring, for one true line. · 3 min You are here
- 1 What a term is built from A term has a coefficient, and a letter part if it has letters. · 6 min
- 2 Joining terms of one kind Like terms join by adding coefficients. The letters do not change. · 7 min
- 3 One term times another Multiply the coefficients, write the letters side by side — a repeated letter becomes squared. · 7 min
- 4 Multiplying a bracket by one term A term outside a bracket multiplies every term inside it. · 7 min
- 5 Every term of one meets every term of the other Two brackets multiply as four pairings, then like terms join. · 8 min
- 6 Checkpoint: parts, joining and multiplying A graded check on the first five ideas. · 5 min
- 7 A square cut into four pieces A square of side a + b cuts into four pieces: a², two ab, and b². · 8 min
- 8 The easy way round an awkward product An identity is true at every value; three of them speed up products like 98 × 98. · 8 min
- 9 Taking out what every term shares Find what every term shares, divide each term by it, and write it outside. · 8 min
- 10 Putting a number in to find out Put a value into both forms; one disagreement proves the rewrite wrong. · 8 min
- 11 From a situation to a line Name the number, write each step as a line, then join like terms. · 8 min
- 12 Checkpoint: patterns, factors and checking A graded check on the second five ideas. · 5 min
- 13 The big picture Ten ideas, tied back together. · 5 min
- 14 Track quiz A cheat-sheet table and ten questions, one per idea. · 9 min
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