Transcript 1st_MA_NS_2.1_ADD_NUMBERS_FACTS_TENS_DW

Name _________________________
Learning Objective
Today, we will memorize1 the addition facts for 10.
1practice
over and over until you remember
CFU
What are we going to do today?
What are we going to memorize?
What does memorize mean?
Today, we are going to memorize the addition facts for 10.
We are going to memorize the addition facts for 10.
Memorize means to practice over and over until you remember.
Activate (or Provide) Prior Knowledge
How many marbles does Jen have?
How many marbles does Tony have?
Jen
Tony
Jen and Tony put their marbles together so they could play a game. Together, they had 4 marbles in
all.
CFU
Students, just like Jen and Tony, you already know how to put things or objects together. Just like putting objects together, you can put
numbers together too. Putting numbers together is called adding. Today, we will memorize the addition facts for 10.
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1st Grade Number Sense 2.1
Know the addition facts (sums to 20) and the corresponding subtraction
facts and commit them to memory.
Lessons are to be used by EDI-trained teachers only.
Concept Development
To add means to put together to find a sum.
A sum is the total amount when you add numbers together.
 The + sign tells us to add the numbers.
 The = sign stands for equals.
Example:
Seven stars added to two stars
equals a sum of 9 stars.
7 + 2 = 9
CFU
In your own words, what does add mean? To add means _________________.
When we put numbers together, what is that called? When we put numbers together, that is called ______.
In your own words, what is a sum? A sum is ______________________________________________.
Which numbers are added correctly?
A.
7 + 1 = 8
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B.
2 + 1 = 1
1st Grade Number Sense 2.1
Know the addition facts (sums to 20) and the corresponding subtraction
facts and commit them to memory.
Lessons are to be used by EDI-trained teachers only.
Importance
It is important to memorize the addition facts for 10 so you can:
● use fact families.
10+3=13 13-10=3
3+10=13 13-3=10
CFU
Does anyone else have another reason why it is important to memorize the addition facts for 10? (pair-share) Why is it important to
memorize the addition facts for 10? You may give me one of my reasons or one of your own. Which reason means the most to you?
Why?
DataWORKS Educational Research
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©2011 All rights reserved.
Comments? [email protected]
1st Grade Number Sense 2.1
Know the addition facts (sums to 20) and the corresponding subtraction
facts and commit them to memory.
Lessons are to be used by EDI-trained teachers only.
Name ________________________
Skill Development and Guided Practice
My Addition Facts for 10
Read aloud
3 times
Write the sum 1 time.
Read 3 times
10 + 1 = 11 10+1 = 11
10 + 2 = 12 10+2 = 12
10 + 3 = 13 10+3 = 13
10 + 4 = 14 10+ 4 = 14
10 + 5 = 15 10+5 = 15
Write the addition fact 1
time. Read 3 times
10 + 1 = 11
10 + 2 = 12
10 + 3 = 13
10 + 4 = 14
10 + 5 = 15
Read
aloud 3
times
Write the sum 1 time.
Read 3 times.
Write the addition fact
1 time. Read 3 times.
10
+1
11
10
+1
10
+1
11
10
+2
12
10
+2
10
+3
13
10
+3
10
+4
14
10
+4
10
+5
15
10
+5
11
12
13
14
15
10
+2
12
10
+3
13
10
+4
14
10
+5
15
Skill Development and Guided Practice (continued)
My Addition Facts for 10
Read aloud
3 times
Write the sum 1 time. Write the addition fact 1
Read 3 times
time. Read 3 times
Read
aloud 3
times
Write the sum 1 time.
Read 3 times.
Write the addition fact
1 time. Read 3 times.
10
+6
16
10
+6
10
+6
16
10
+7
17
10
+7
10
+8
18
10
+8
10
+9
19
10
+9
10
10 + 10 = 20 10+10 = 20 10 + 10 = 20 + 10
20
10
+ 10
10 + 6 = 16 10+6 = 16
10 + 7 = 17 10+7 = 17
10 + 8 = 18 10+8 = 18
10 + 9 = 19 10+9 = 19
10 + 6 = 16
10 + 7 = 17
10 + 8 = 18
10 + 9 = 19
16
17
18
19
20
10
+7
17
10
+8
18
10
+9
19
10
+ 10
20
Independent Practice
Name _______________________________
My Addition Facts for 10
13
10  3  ____
20
10  10  ____
10
+3
13
10
+4
14
11
10  1  ____
10
+ 10
20
10  6  ____
16
10
+5
15
10
+1
10  2  ____
12
10
+5
15
11
10  7  ____
17
10
+ 10
10  9  ____
19
10
+2
10  8  ____
18
10
+9
20
16
10  6  ____
10
+3
13
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©2011 All rights reserved.
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18
10  8  ____
12
19
1st Grade Number Sense 2.1
Know the addition facts (sums to 20) and the corresponding subtraction
facts and commit them to memory.
Lessons are to be used by EDI-trained teachers only.