Transcript JR_u6b_summer_solvingproblems_day2

Solving Problems and Puzzles
7/5/05
To recall multiplication facts and
derive division facts from the 7
times table 7/5/05
To recall multiplication facts and derive
division facts from the 7 times table
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2
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To recall multiplication facts and derive
division facts from the 7 times table
1
2
3
4
5
6
7
8
9
10
7
14
21
28
35
42
49
56
63
70
To recall multiplication facts and derive
division facts from the 7 times table
1
2
3
4
5
6
7
8
9
10
7
14
21
28
35
42
49
56
63
70
What is this multiplication fact?
To recall multiplication facts and derive
division facts from the 7 times table
1
2
3
4
5
6
7
8
9
10
7
14
21
28
35
42
49
56
63
70
4 x 7 = 28
What is this multiplication fact?
To recall multiplication facts and derive
division facts from the 7 times table
1
2
3
4
5
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7
8
9
10
7
14
21
28
35
42
49
56
63
70
28 - 7 = 4
What is this division fact?
…………….or
To recall multiplication facts and derive
division facts from the 7 times table
1
2
3
4
5
6
7
8
9
10
7
14
21
28
35
42
49
56
63
70
28 - 4 = 7
What is this division fact?
…………….or
To recall multiplication facts and derive
division facts from the 7 times table
1
2
3
4
5
6
7
8
9
10
Hands up!!
What division facts can you remember?
LO: To solve mathematical problems
and puzzles, explain methods and
reasoning.
7/5/05
What fraction of these eight shapes are squares?
Now what fraction of these eight shapes are
squares?
½ of the shapes are squares, ½ of the
shapes are circles/ Two squares are
replaced with two circles. Now 1/3
of the shapes are squares, 2/3 of the
shapes are circles.
How many shapes did we start with?
If 1/3 of the total number of
shapes were squares what
multiplication table will the total
number of shapes be in?
If 1/3 of the total number of
shapes were squares what
multiplication table will the total
number of shapes be in?
Total
3
6
9
12
15
18
21
1/3 squares
2/3 circles
1/5 of the cubes
in this bag are are
red and 4/5 are
blue. Altogether
how many cubes
might be in the
bag?