Number Sense Mission
Build number sense from counting and comparing through addition, subtraction, and early place value - for kindergarten and grade 1.
7 activities · Work through in order for a complete lesson arc
Ten-Frame & Subitizing Studio
Build numbers on ten-frames, subitize dot patterns, and fill frames to match targets. Build early number sense for numbers 1 to 10. Grades K-1.
Start here - ten-frames build subitizing and number sense.
Count, Compare & Order Numbers
Count objects, compare pairs with greater than, less than, or equal, and put numbers in order. Covers K.CC.6, K.CC.7, and 1.NBT.3. Grades K-1.
Teen Numbers Builder (10 + Ones)
See teen numbers as 10 plus some ones using ten-rods and unit blocks. Build, identify, and decompose numbers 11 to 19. Grades K-1.
Number Path & Hop Count Adventure
Hop forward and backward on a number path from 0 to 20. Practice counting on, counting back, and early addition and subtraction. Grades K-1.
Number Bonds & Fact Families Builder
Build part-part-whole number bonds and explore all four related addition and subtraction facts. Three difficulty levels for grades K-3.
Tally Marks & Pictograph Builder
Record survey data with tally marks and display it as a pictograph. Practice reading charts, comparing counts, and answering data questions. Grades 1-2.
Addition & Subtraction Strategies Explorer
Explore addition and subtraction with base-10 blocks, number line hops, and the column method. Visualize regrouping and borrowing for numbers up to 999
Capstone - practice addition and subtraction with models.
Study Materials
Worksheets
