Unit 5 · Standard 6.GR.4
Determine Surface Area of Pyramids
My Notes Level 1 Support Level 2 Standard Level 3 Enrichment
Today's objectives
Content Objective: I can find the surface area of a pyramid by adding the base area and the lateral faces.
Language Objective: I can explain my work using the words pyramid, slant height, lateral face, and base.
📖 See Learn It for the explanation and worked examples, and the Vocab tab for the words. These are your notes to fill in and keep.
✏️ Fill in each blank as we go. Use the Word Bank to help you.
👆 Tap any word to see its meaning and a picture.
Level 3: try the blanks from memory first, then check the bank.
- 1A solid with a polygon base and triangular faces meeting at one point is a .
- 2The height of a triangular face of a pyramid, measured along the slanted side, is the .
- 3A triangular side face of a pyramid is a .
- 4The polygon on the bottom of a pyramid is the .
- 5The single top point where the triangular faces of a pyramid meet is the .
- 6The combined area of all the side faces, not counting the base, is the .
Write About the Math
How much will the glass for all 4 triangular sides cost? (The base is open — no glass needed.)?¿Cuánto costará el vidrio de los 4 lados triangulares? (La base está abierta — no necesita vidrio.)?
Say your answer to a partner first. Then write it, using at least two of these words:
Model: Surface area of a pyramid is the base area plus the areas of all the triangular lateral faces. — Students explain a square pyramid's surface area = base area + the four triangular lateral faces, and that you add every face together.
Start
Complete the frames. Use the word bank.Completa las oraciones. Usa el banco de palabras.
- Each triangular face has area = ½ × ___ × ___ = ___ ft². Four faces: 4 × ___ = ___ ft². Cost: ___ × $12 = $___.
- My answer is ___ because ___.Mi respuesta es ___ porque ___.
Build
Write two connected sentences. Use because, so, or but.Escribe dos oraciones conectadas. Usa porque, entonces o pero.
- My claim is ___.Mi afirmación es ___.
- My evidence is ___, so ___.Mi evidencia es ___, entonces ___.
Explain
Write a claim, give math evidence, and explain your reasoning.Escribe una afirmación, da evidencia matemática y explica tu razonamiento.