GRADE 1 · ALBERTAOUTCOME AB-G1-1G1
L1 · Cubes, spheres and cylinders
Learning goal
“I can name a cube, a sphere, and a cylinder by feeling its flat and curved parts.”
Face — one flat part of an object.
Flat — smooth and level, like the top of a table.
Curved — bent and round, not flat.
Roll — to move by turning over and over.
Worked example
First object: it has 6 faces. Every face is flat, and every face is a square. Step 1: Count the faces: 6. Step 2: Ask: are the faces flat or curved? All flat. Step 3: An object with 6 flat faces, all squares, is a cube. A cube slides; it does not roll. Second object: it is round all over. It has no flat faces at all. It is a sphere. A sphere rolls. Say it plainly: feel the parts. Flat faces or round all over - that tells you the name.
Check yourself — explain it
Why can a sphere roll?
Paired problem — example still visible
Which object can roll: a cube or a sphere? -> A sphere
Faded completion — last step is yours
"A sphere has no flat faces, so it can ___" -> roll
Ready to practise?
8 scored questions with a 3-rung hint ladder. Mastery needs 7/8 plus both gate questions.