Websites, Activities & Links:
Families: Use this link to access information, examples, and videos to our WCPSS First Grade Math Curriculum.
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Subitizing and Addition
This is a great game to practice your SUBITIZING! (Seeing a set of objects and quickly identifying the value through quick addition and value recognition.)
Let's start learning our facts to 10! Use those 10 fingers if you need some help. Can you figure out the strategy to this game?
Graphing:
Subtraction: (try "Think Addition)
Use the "think addition" strategy to solve for subtraction.
Count on from the partner to see how many it takes to get to the total. For example: 11-7=_____ Say 7| **** It took 4 more. 11-7=4 |
***CHALLENGE***
This game requires quick counting-on! Give it a try. :) |
Place Value: Tens and Ones
BIG MATH:
Geometry
Time:
Addition and Subtraction Strategies:
Addition
Counting All:
"Counting All" is a beginning addition strategy. At this point in the year (February), students are encouraged to move on from this strategy and begin using more efficient ones.
Counting On:
Make A Ten:
I really hope to see more students using this strategy. We have been working a long time to know the "partners of ten" and should now be thinking about those partners to add numbers into the teens.
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Doubles and Doubles +1
SUBTRACTION
Subtract with A Number Line:
Using a number line to show subtraction is a great alternative strategy to drawing circles and taking some away. Students must work to start number line at a reasonable spot. (It does not always need to start at one.)
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Subtraction- Back Down Through Ten:
This is a higher level strategy that uses ten as a bridge to efficiently subtract when teen numbers are involved.
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Think Addition to Solve Subtraction:
This is a subtraction strategy that uses addition to solve subtraction.
We have learned about "partners" and the "total" this year. The partners add up to the total. P+P=T If you subtract one partner from the total...the other partner remains. T-P=P When using the "think addition" strategy. Students build their conceptual knowledge of addition and subtraction and how they relate to each other. |
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