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177 Number Dip

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Teacher Notes


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Activity OutcomeSeparating a set (to 10) into 2 sub-sets. Recombine sub-sets to find original total.
MTS Set 1
NSW Curriculum NS2 Addition and Subtraction (1-2)
Topics Separating Sets
Keywords Separating Sets, Adding
GroupingLearning pairs
ResourcesA paper bag and 10 red and 10 blue counters for each pair.
Lesson Notes
  • Provide children with the resources and activity sheet.
  • Describe how to play the game - Ask: How many red counters are in the bag? How many blue counters are in the bag? How many counters in the bag altogether? Take turns to choose 4 counters from the bag without looking. (Demonstrate) I have 2 blue counters and 2 red counters. Write 2 and 2 in the boxes.
  • Make up a number story about the actions: "I had 4 counters. 2 counters are blue and 2 counters are red." Ask: Can you say the number story to me?
  • Direct children to play the game for a few minutes before stopping them to ask: How are you sharing in the game? Who is writing the numbers? Who is taking the counters from the bag? Can you tell me your first sum? ("I had 4 counters. 3 counters are blue and 1 counter is red.")
  • Direct children to continue playing the games. Bring the children back together several times to 'read' their number stories.
ReflectionsAsk: Did you work well as a pair? Did you share the work to be done? How did you share the work? Ask: Turn your activity sheet over. Can you remember any number stories you made when you took 10 counters from the bag? Are there any other number stories about 10??
Integration Links Not applicable
Internet Links Not applicable
AnswersNot applicable