Changing Numbers From MATH PERSPECTIVES by Kathy Richardson. Assess and develop number sense in your kindergarteners, first graders and second graders with this simple activity. This includes a level II section for changing within units to assess emerging levels of place value understanding.
“Changing Numbers is the understanding that we either add to or take away from one number to make another number and knowing how much to add or take away.
At the most concrete level, use actual counting toys. Next, move to tiny ten frames, (Rekenreks are awesome too) and finally, replace with place value blocks.
During small group time, ask students to show 6. Then say a new number, such as 8, and ask students if they would need to add to their number or take away from it. After they respond, have them change their number to the new number. Continue this same process with additional numbers.
6 Pages of simple number changes (place in page protectors to write/wipe)
4 Level II pages including ten frames
Free sample of tens/ones subitizing cards from the PLACE VALUE BAKERY Number Sense and Unitizing Packing: Cookies Tens and Ones
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To emphasize PROBLEM SOLVING with actual thinking: Go Numberless!:
Grade 2 Standards Numberless Word Problems to Sort & Solve
Grade 1/Early 2 Numberless Word Problem Sort & Solve
Grade 3 Numberless Sort & Solve
Shake, Spill & Show: At the Bakery
THE BIG MOVE From Number Composition to Unitizing
Addition and Subtraction Sorts: Composing Numbers 12 Sorting Activities
For Emerging Place Value Understanding:
PLACE VALUE BAKERY Number Sense and Unitizing Packing: Cookies Tens and Ones
Part Whole Model PLACE VALUE BAKERY Task Cards First & Second Grade
Place Value Fun & Depth of Understanding for one of the BIGGEST standards we teach!
MYSTERY NUMBER Place Value Freebie!
MYSTERY NUMBER Scoot Task Cards for Place Value, Reasoning & Vocabulary
For DOUBLES FACT Fluency Assessments, Games, Interventions & Enrichment check out:
DOUBLES FACT PACK
For MATH OLYMPICS check out:
COMPLETE MATH OLYMPICS EVENT PACK: Games, Certificates, Posters & Google Doc
Math Olympics Kindergarten Race to 10 or 20 and Build a Tower
Math Olympics Shake & Spill
Math Olympics Version of Flexible Place Value Task Cards
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