Friends – Activities – dandelion (admin)

Durtles updated ‘Re-Sorting ‘ 3 years, 10 months ago

A problem about sorting a shuffled set of cards back into the original order

Durtles updated ‘Re-Sorting ‘ 3 years, 10 months ago

A problem about sorting a shuffled set of cards back into the original order

Durtles updated ‘Re-Sorting ‘ 3 years, 10 months ago

A problem about sorting a shuffled set of cards back into the original order

一个下雨天，爱读书的小丹在她习惯独处的小角落里遇到了一个自称是从故事书里掉出来的火柴人。 3 years, 10 months ago

Durtles updated ‘Re-Sorting ‘ 3 years, 10 months ago

A problem about sorting a shuffled set of cards back into the original order

一个下雨天，爱读书的小丹在她习惯独处的小角落里遇到了一个自称是从故事书里掉出来的火柴人。 3 years, 10 months ago

Durtles wrote a new post 3 years, 10 months ago

This problem came to me while I was doing the English alphabet flashcards with my four year old. Each day I would shuffle the cards and lay them out in front of her, and she would follow my movement until she […]

Durtles wrote a new post 3 years, 10 months ago

A. You have 5 identical apples that you want to give to friends, and you have 5 friends who would like apples. Their names are Amy, Bert, Carl, Dina, and Eric. You don’t have to be fair and give the same number […]

Durtles wrote a new post 3 years, 10 months ago

A Connect Four game set contains a 6×7 grid, 21 blue chips, and 21 yellow chips. Is there a way to arrange all the chips on the grid so that there are no four consecutive chips of the same colour horizontally, […]

Durtles wrote a new post 3 years, 10 months ago

Moon over Water

A rough painting with crayons and pencil crayons on lined A4 paper, of full moon in a clear sky over still water.