B1.6: Count by halves, thirds, fourths, sixths and eighths, with and…
Count by halves, thirds, fourths, sixths and eighths, with and without tools (the number line).
The Ontario Mathematics, Grades 1–8 outcome B1.6 (Number) for Grade 4 says: “Count by halves, thirds, fourths, sixths and eighths, with and without tools (the number line).” This Fieldbook unit teaches it hands-on, with everyday materials and a printable teacher guide and student sheet for every lesson. Official wording: Ontario Mathematics, Grades 1–8.
Fair Shares: Fractions and Decimals Grades 3–4 · partly supports this outcome
Is half always the same size? Where does three-quarters stand? Why is 3/4 + 2/4 not 5/8? Who jumped further, 1.4 m or 1.35 m? Four hands-on lessons where students fold, stand on a giant number line, measure recipes and measure their own jumps to make sense of fractions and decimals.
- Where does three-quarters stand? 50–60 min
The class builds a giant number line from 0 to 2 on the playground, and each student stands where their fraction card belongs. Students discover that 1/2, 2/4 and 4/8 all stand on the same spot, and explain fractions as numbers with a place on the line, equivalent fractions and how to compare fractions with benchmarks.
Printable practice for B1.6
These pages practise a closely related idea; the match to B1.6 is partial.
- Fair Shares: Fractions and Decimals workbook included with the unit
1 word wall, 1 English-support page, 1 practice page, 1 reading, 1 unit review, 1 unit test, with answer keys.
- Grade 4 Ontario Math: Number printable pack
2 assessments, 1 practice page, with answer keys. Free sample.
- Grade 4 Common Core Math: Number and Operations printable pack
2 assessments, 1 practice page, with answer keys. Free sample.
Need just this outcome? Build a custom pack from these pages, with its answer key, in about a minute. Custom packs come with All-access and school licences.
Compared with Common Core: 3.NF.A.2 (partial).
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