pyramid

Everyday

1. A pyramid is a solid shape with a flat bottom (base) and sides shaped like triangles that meet at a point at the top. A square pyramid has 5 faces. tree →
2. The Pyramids of Egypt are huge old stone buildings of this shape, made as tombs for kings. tree →
3. A pyramid is also a pile of things in rows that get smaller towards the top. tree →

In the lessons

In maths: a solid shape with faces, edges and corners (vertices) to count; also a stack of things in rows that get smaller to the top, so add the rows. In history: the Pyramids of Giza in Egypt were built thousands of years ago. In science: a food pyramid shows which foods to eat most. Phrases: square pyramid, triangular pyramid, the Great Pyramid, food pyramid.

Examples

• A square pyramid has 5 faces. tree →
• He built a pyramid of cans with 4 in the bottom row. tree →
• Each row of the pyramid has one fewer block. tree →
• How many edges does a square pyramid have? tree →
• The ancient Egyptians built pyramids for their kings. tree →
• A triangular pyramid has 4 faces, all triangles. tree →
• The cheerleaders made a human pyramid. tree →
• The food pyramid shows we need lots of fruit and vegetables. tree →
• Then I buried them beneath a pyramid of sand, which covers them all. tree →

Note

Countable. A pyramid is named after the shape of its base: square pyramid, triangular pyramid. A shape word: count faces, edges, corners. In a stacked pyramid each row is one less, so add the rows. Trap: a square pyramid has 5 faces, 8 edges and 5 corners. Trap: a cone is not a pyramid (its base is a circle).

In Jewish tradition

Interpretation: The old writers picture creation as a pyramid with one point on top, the One God, and a broad base below, the many created things. In the primary lessons: In maths: a solid shape with faces, edges and corners (vertices) to count; also a stack of things in rows that get smaller to the top, so add the rows. In history: the Pyramids of Giza in Egypt were built thousands of years ago. In science: a food pyramid shows which foods to eat most. Phrases: square pyramid, triangular pyramid, the Great Pyramid, food pyramid.

Examples

• The whole creation is thus contemplated as a pyramid, terminating in a point at the top with a broad basis. [See Dr. Graetz's Gnosticismus, p. 224.] (Sefer Yetzirah, Kalisch 1877) tree →

Note

Countable. A pyramid is named after the shape of its base: square pyramid, triangular pyramid. A shape word: count faces, edges, corners. In a stacked pyramid each row is one less, so add the rows. Trap: a square pyramid has 5 faces, 8 edges and 5 corners. Trap: a cone is not a pyramid (its base is a circle).