Mathematics
Remember?
3 quick questions from earlier weeks · about 3 minutes
- 8 + 4 = ? Facts to 20
- Kai has 49 beads. Kai gets 22 more. How many beads now? Week 18
- There are 57 birds in a tree. 13 leave, then 14 more come. How many birds now? Week 16
Objective: Students will choose an appropriate tool (ruler, yardstick, or tape measure) and measure the length of an object in inches (2.MD.A.1).
- 10 min — Warm-Up: Lay out 12 paper clips in 3 rows of 4 and have your child write the repeated addition sentence from last week (4 + 4 + 4 = 12). Then line the 12 clips end to end in a single row and ask: 'How could we tell someone exactly how long this row is?' Listen for 'measure it' and 'use a ruler.'
- 15 min — Mini-Lesson: Meet the Tools: Put a 12-inch ruler, a yardstick (or a 36-inch strip of masking tape marked every inch), and a tape measure side by side. Show that each is marked in inches, that measuring starts at the 0 mark (not the end of the wood), and that a ruler is for short things, a yardstick for medium things like a table, and a tape measure for long or curved things. Measure a crayon together (about 3 inches) and say 'The crayon is 3 inches long' while sliding a finger from 0 to 3.
- 15 min — Practice: Which Tool?: Give your child a spoon, a book, the kitchen table, a shoe, and a doorway. For each, they say which tool fits best, measure to the nearest inch, and record the result on a chart with columns for Object, Tool, and Inches (expect roughly spoon 6 in, book 9 in, table 48 in, shoe 8 in, doorway 80 in). Support: pre-mark the 0 end of each tool with a sticker. Stretch: measure the table with the ruler too and count how many times the ruler had to be moved.
- 5 min — Wrap-Up: Ask: 'Why did you pick the tape measure for the doorway instead of the ruler?' Have your child write one sentence: 'I use a ruler for short things and a tape measure for long things.'
Materials: 12 paper clips, 12-inch ruler, yardstick or 36-inch marked tape strip, tape measure, crayon, spoon, book, shoe, chart paper, sticker, math journal, pencil