Florida B.E.S.T. MA.6.NSO.1.1

Math6th GradeExtend knowledge of numbers to negative numbers and develop an understanding of absolute value.

The Standard

Extend previous understanding of numbers to define rational numbers. Plot, order and compare rational numbers.

Florida B.E.S.T. Standards for Mathematics

Teacher's field guide

What Students Need to Do: Students identify numbers that can be written as a fraction of two integers. They plot positive and negative rational numbers, then compare and order fractions, decimals, integers, and zero.
What Mastery Looks Like: Students accurately plot positive and negative fractions, decimals, integers, and zero on a number line. They order mixed forms and explain comparisons using position, benchmarks, or equivalent forms.
Common Misconceptions: Students may think a number with greater digits is always greater, so they choose −8 over −3. They may also confuse absolute value with the number’s sign or misplace negative fractions and decimals.
How to Assess It: Give an exit ticket with −1.5, 3/4, −2, and 0. Ask students to plot them, order them, and justify one comparison.

Lesson moves

Place rational number cards on a taped floor number line, then have students adjust positions and explain each move.
Ask, “Which is greater, −2.4 or −2 1/3?” Students write a claim and support it with a number line.
Play a card game where pairs draw rational numbers, compare them, and keep both cards after giving a correct explanation.
Compare temperatures, bank balances, and elevations by plotting real data on number lines and ordering the values.

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