Math Parent Presentation 1.notebook
December 03, 2014
Osborn School Math Parent Presentation
Session 1
Place Value
11/25/14
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Math Parent Presentation 1.notebook
December 03, 2014
What other ways can you express this number?
743
number form
word form: seven hundred forty three
unit form: 7 hundreds 4 tens 3 ones
expanded form: 700 + 40 + 3
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Math Parent Presentation 1.notebook
December 03, 2014
What other ways can you express this number?
572.08
572 8/10
five hundred seventy two and eight hundredths
5 hundreds 7 tens 2 ones and 8 hundredths
500 + 70 + 2 + .08
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Math Parent Presentation 1.notebook
December 03, 2014
http://www.youtube.com/watch?v=pOOW0hQgVPQ
This link is to a video that gives research evidence on the reasons conceptual mathematics is needed in the US. It addresses the tasks and questions used in mathematics classrooms, mindset, problem solving, and advancement and tracking
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Math Parent Presentation 1.notebook
December 03, 2014
743
Hundreds
7
Tens
Ones
4
74
3
3
743
7 hundreds 4 tens 3 ones
74 tens 3 ones
743 ones
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Math Parent Presentation 1.notebook
December 03, 2014
743
Hundreds
Tens
Ones
7 4 3
Third grade representation of place value
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Math Parent Presentation 1.notebook
December 03, 2014
743 + 428
Thousands
Hundreds
Tens
Ones
3rd grade represents the "ones place" with discs, the "tens place" with rods, the "hundreds place" with boxes and the "thousands place" with bars.
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Math Parent Presentation 1.notebook
December 03, 2014
743 + 428
Thousands
Hundreds
Tens
Ones
1 1 7 1
This shows how 3rd graders bundle 10 ones discs into 1 tens rod and 10 hundreds boxes into 1 thousands bar
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Math Parent Presentation 1.notebook
15,835
Ten Thousands
December 03, 2014
While 3rd grade represents place value as bars, boxes, rods, and discs, 4th grade represents numbers in a place value chart with just discs
Thousands
Hundreds
Tens
Ones
1 5 8 3 5
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Math Parent Presentation 1.notebook
December 03, 2014
15,835 + 743 = 16,578
Ten Thousands
1
Thousands
6
Hundreds
5
Tens
7
Ones
8
This shows how 4th grades are expected to bundle 10 hundreds into 1 thousand
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Math Parent Presentation 1.notebook
December 03, 2014
This shows how 4th graders are expected to multiply by 10's with a place value chart
572 x 10 100,000 10,000
1,000
5,720 x 10
100
10
1
5 x 10 7 0 2
x 1
7
2 0
x 10
2
0
0
x 10
x 10
5
5
x 10
7
500 x 10 = 5,000
5,000 x 10 = 50,000
70 x 10 = 700
700 x 10 = 7,000
2 x 10 = 20
20 x 10 = 200
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Math Parent Presentation 1.notebook
December 03, 2014
572.08
hundreds
5
tens
7
ones
2
tenths hundredths
0
8
5th graders look at place value to the right of the decimal point and they are expected to use numbers in a place value chart
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Math Parent Presentation 1.notebook
December 03, 2014
572.08 x 1,000
100,000 10,000
1,000
x 1,000
5
7
2
100
5
0
10
1
.1
.01
7
2
0
0
0
8
0
8
_
572.08 100
1,000
100
10
1
.1
.01
.001
.0001
5
7
2
5
0
7
8
2
0
8
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Math Parent Presentation 1.notebook
December 03, 2014
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