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All Lesson Plans

Domino Frames

General Instructions

Arrange dominoes in a square frame so that the sum of the numbers along each side is the same.

Puzzle #1

Puzzle Board

Domino Frame 1 – Polypad – Polypad
polypad.org/BAyf8jaEYbYylg

Instructions

Using each domino only once in each frame, create 3 by 3 square frames with all possible sums. Here is the example of a domino frame with a sum of 12.

Some questions to think about:

  • What is the least possible sum?
  • What is the greatest possible sum?
  • How many solutions are available for each sum?

Solution

Domino Puzzle 1 Possible Frame – Polypad – Polypad
polypad.org/3xUPhTQkNMlBoA

Puzzle #2

Puzzle Board

Domino Frame 2 – Polypad – Polypad
polypad.org/J6SLbpvZcLxCA

Instructions

Use all 28 dominoes to make all possible 3 by 3 domino frames.

Solution

Using a single set of 28 dominoes, you can make exactly 7 domino squares.

Solution of the Domino Puzzle – Polypad – Polypad
polypad.org/22PYIhkq5fVbQ

Puzzle #3

Puzzle Board

Domino Frame 3 – Polypad – Polypad
polypad.org/txgLsi59EKB2vg

Instructions

Use all 28 dominoes in a single set to create a 15 x 15 square so that the sum of the numbers along each side is the same. Additionally, as in the traditional domino game, only the same number of points can be placed next to each other.

Solution

Solution of the Domino Frame 3 – Polypad – Polypad
polypad.org/ONtnfoEnbpOqhQ

Desmos Classroom Link

Domino Frames Puzzle Set • Activity Builder by Desmos Classroom
teacher.desmos.com/activitybuilder/custom/6373ff02869e37f7d91b9fbd