Do Less, Get More
2017 NCSM Ignite!
Brian Bushart
Elementary Mathematics Curriculum Coordinator
3,200
@bstockus
@EMathRRISD
Trends
Jana bought 1 hat and 2 skirts. The hat cost $28.53, and the skirts
cost $15.88 each. What is the total cost in dollars and cents of the
items Jana bought?
4th Grade, Texas STAAR, 2016
54% - correct or reasonably close
36% - 1 hat and 1 skirt
@bstockus
@EMathRRISD
@bstockus
@EMathRRISD
Do 3 less things
1. Less problems
2. Less words
3. Less numbers
@bstockus
@EMathRRISD
Less problems
@bstockus
@EMathRRISD
Can my
thinking
go here?
Too
cramped!
Maybe a
little can
go here?
@bstockus
@EMathRRISD
Source
@bstockus
@EMathRRISD
Less words
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@EMathRRISD
Sebastian had a rectangular piece of paper that was 90 mm long and
50 mm wide. He cut the paper in half. What is the area of each half
of the paper in square millimeters?
A 4,500 square millimeters
26%
B 9,000 square millimeters
C 2,250 square millimeters
46%
D 1,125 square millimeters
24%
4th Grade, Texas STAAR, 2016
@bstockus
@EMathRRISD
Sebastian had a rectangular piece of paper that was 90 mm long and
50 mm wide. He cut the paper in half.
4th Grade, Texas STAAR, 2016
@bstockus
@EMathRRISD
50 mm
50 mm
90 mm
90 mm
@bstockus
@EMathRRISD
Sebastian had a rectangular piece of paper that was 90 mm long and
50 mm wide. He cut the paper in half. What is the area of each
half of the paper in square millimeters?
4th Grade, Texas STAAR, 2016
90 × 50 = 4,500
Half of 4,500 is 2,250
@bstockus
@EMathRRISD
Less numbers
@bstockus
@EMathRRISD
A factory makes 400 refrigerators every day. The factory makes 125 more
stoves per day than refrigerators. Write an equation that could be used to find
x, the total number of refrigerators and stoves the factory makes in one day?
A x = 400 + 400 + 125
B x = 400 + 125
C x = 400 + 400 – 125
45%
46%
D x = 400 – 125
4th Grade, Texas STAAR, 2016
@bstockus
@EMathRRISD
A factory makes some refrigerators every day. The factory makes more
stoves per day than refrigerators.
4th Grade, Texas STAAR, 2016
@bstockus
@EMathRRISD
A factory makes 400 refrigerators every day. The factory makes more stoves
per day than refrigerators.
4th Grade, Texas STAAR, 2016
@bstockus
@EMathRRISD
A factory makes 400 refrigerators every day. The factory makes 125 more
stoves per day than refrigerators.
4th Grade, Texas STAAR, 2016
@bstockus
@EMathRRISD
A factory makes 400 refrigerators every day. The factory makes 125 more
stoves per day than refrigerators. Write an equation that could be used to
find x, the total number of refrigerators and stoves the factory makes in
one day?
4th Grade, Texas STAAR, 2016
@bstockus
@EMathRRISD
Do less
1. Less problems
2. Less words
3. Less numbers
@bstockus
@EMathRRISD
Get more
1. More evidence of student thinking
2. More sense making
3. More understanding of relationships
@bstockus
@EMathRRISD