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K.1 Addition up to 10 with colored blocks

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Addition Up to 10 Using Colored blocks

Using colored blocks helps students visually understand addition by combining groups to find the total number of blocks.

Example Problems:
  • There are 4 blue blocks and 3 red blocks. How many blocks are there in all? → 4 + 3 = 7
  • John has 5 yellow blocks. He gets 2 more green blocks. How many blocks does John have now? → 5 + 2 = 7
  • On the table, there are 0 orange blocks and 6 pink blocks. What is the total? → 0 + 6 = 6
Helpful Hint

Encourage children to group blocks by color first, then count the total to better visualize the addition process.

Translating Block Addition Into Number Sentences

Students learn to write addition sentences from the story of colored blocks by identifying the numbers involved and using plus (+) and equals (=) signs.

Example Translation:
  • "3 blue blocks and 4 red blocks" → 3 + 4 = 7
  • "7 green blocks plus 2 yellow blocks" → 7 + 2 = 9
  • "0 orange blocks and 5 pink blocks" → 0 + 5 = 5
Teacher Tip

Use actual colored blocks or images so students can manipulate objects before writing the number sentence.

Finding the Sum and Checking With Blocks

After forming the addition sentence, students solve for the total and can check their answer by counting the blocks together.

Example Solutions:
  • 4 + 5 = 9 (Four blocks plus five blocks equal nine blocks)
  • 6 + 3 = 9 (Six blocks combined with three blocks make nine blocks)
  • 2 + 0 = 2 (Two blocks plus zero blocks is still two blocks)
Reminder

Encourage students to count out loud or use their fingers to verify the total after adding the blocks.

Using Number Words with Colored blocks

Reading and saying number sentences aloud reinforces number recognition and connects spoken words with math symbols.

Example Phrases:
  • "Four plus three equals seven" → 4 + 3 = 7
  • "Five plus two equals seven" → 5 + 2 = 7
  • "Zero plus six equals six" → 0 + 6 = 6
Language Support

Have students practice saying number sentences with peers to build confidence in math vocabulary and fluency.

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