Suitable for Grades: 4th Grade, 5th Grade
CCSS: 4.MD.A.1, 5.MD.A.1
CCSS Description: Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz.; l, ml; hr, min, sec. Within a single system of measurement, express measurements in a larger unit in terms of a smaller unit. Record measurement equivalents in a two-column table. For example, know that 1 ft is 12 times as long as 1 in. Express the length of a 4 ft snake as 48 in. Generate a conversion table for feet and inches listing the number pairs (1, 12), (2, 24), (3, 36), …
CCSS Description: Convert among different‑sized standard measurement units within a given measurement system (e.g., convert 5 cm to 0.05 m), and use these conversions in solving multi‑step, real world problems.
Prepare your students to measure, compare, add, and subtract lengths fluently in meters and centimeters by first looking at some equivalent measurements.
Learners will use a double number line to find the equivalence of whole numbers of meters and centimeters in section A. Lengths in cm, such as 290 cm, are partitioned into cm and m in section B using part part whole models. Fractional lengths in meters are considered in section C where students calculate how many cm there are in ¼ , ½, and ¾ of a meter before applying this to find equivalences such as 150 cm = 1 ½ m.