Cousins get togethers always come with math puzzles to work on. The last 2 days we used questions from the 2nd Graders Berkeley Math Circle curriculum.
With the ages 4-11 we emphasize kids working independently on the problems at first...
With the ages 4-11 we emphasize kids working independently on the problems at first...
The kids who get the answers first show their work to an adult separately and "present the solution" requiring them to explain themselves well. Once all the kids are done or give up, the "right" kids need to guide the others until they can explain it to an adult themselves.
The puzzles we did this am
1. You have 4 coins but one of them is fake and weighs more or less than the others. You have 2 weighings on a balance scale.
Find the fake.
1. You have 4 coins but one of them is fake and weighs more or less than the others. You have 2 weighings on a balance scale.
Find the fake.
2. 9 coins with 1 fake. You get 2 weightings. Find out of the fake is too heavy to too light. You do not need to identify the fake.
One last bit...we often play a game where we give the youngest a math question. Their answer is an input into the next older kids question.
Solve simultaneously.
So youngest gets say 4+5
Next kid gets (youngest answer) times 5
And so on.
Oldest kid needs to solve the chain
Solve simultaneously.
So youngest gets say 4+5
Next kid gets (youngest answer) times 5
And so on.
Oldest kid needs to solve the chain
We only add very modest levels of competitiveness to these (extra candy for being fast for example).
Focus is on mostly on cooperation, enjoying the challenges, and pushing thru "it's hard"
If you do similar stuff at home, pls share! Always looking for new challenges.
Focus is on mostly on cooperation, enjoying the challenges, and pushing thru "it's hard"
If you do similar stuff at home, pls share! Always looking for new challenges.
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