Show:
Cups and Blobs
Simplification
Expanding Brackets
Solving Equations
Substitution
100
What letter is a cup?
y
100
Simplify 2x+x
3x
100
Expand 2(y+1) using cups and blobs.
U U o U U o 2(y+1) = 2y+2
100
? + 3 = 5
2
100
Solve y+3 where y=1.
4
200
Draw 2y+1
U U o
200
Simplify 2y-y
y
200
Expand 3(2x+2)
6x+6
200
Solve y+5=10
y = 5
200
Solve 2x where x=3.
6
300
Draw 2y+2x+1
U U |X| |X| o
300
Simplify x+2x+5+y+4
3x+y+9
300
Expand 4(12x-3)
48x-12
300
y=5
Solve 3y=15
300
Solve 2y+8 where y=5.
18
400
Draw 2x+2 in an unexpected way.
o |X| o |X|
400
Simplify 4x+2x-x
5x
400
Expand -2(-3+4x)
6-8x
400
Find y. 2y-1=5
y=3
400
Solve 7y-2y where y=3
15
500
Draw 4(y+1)
U o U o U o U o
500
Simplify 2x-4x+y-4y
-2x-3y
500
Expand x(2x-1)
2x^2-x
500
Use scales to solve 2y+6=4y+4
y=1
500
Solve y^2-y+15 where y=10
105