Every piece is the same. KEVA planks are about 1/4 inch thick, 3/4 inch wide and 4 1/2 inches long.
You build structures by simply stacking the planks. No glue, no connectors. They can be stacked upright which looks like it would be unstable as a house of cards, but even this type of structure is surprisingly stable.
From the simplest counting exercises to the most complex bridge challenges, KEVA can change abstract concepts into tangible form. Children can get a “feel” for numbers and a first hand understanding of the physical forces acting on the planks. The fundamental understanding of number relationships gained by a first grader playing with blocks can benefit him years later in high school calculus.
KEVA Planks are based on a ratio of 1:3:5. This allows the blocks to fit together seamlessly in the structures.
The width of one plank = the depth of 3 planks.
The width of five planks = the length of 1 plank
How far over the edge of the table can you overhang your blocks?
Time: 10 minutes
Rules:
1. You may use any number of KEVA blocks you would like.
Discuss:
What did you learn or discover as you built?
How are forces working in your structure?
What can you learn from structures others have built?
How far over the edge of the table can you overhang your blocks?
Time: 10 minutes
Rules:
1. You may use any number of KEVA blocks you would like.
2. You may only make your structures one block length wide.
Discuss:
What did you learn or discover as you built?
How are forces working in your structure?
What can you learn from structures others have built?
Create the widest & tallest structure?
Time: 15 minutes
Rules:
1. You may use any number of KEVA blocks you would like.
2. Only one block may touch the table.
Discuss:
What did you learn or discover as you built?
How are forces working in your structure?
What can you learn from structures others have built?