Curated OER
Planetary Place Value
Third graders explore place value to the ten thousands place. This incredibly thorough, 24-page lesson has learners construct, order, and compare numbers to 9,999. This three-day lesson includes reteaching and extension activities...
Curated OER
Playing the Cards of Place Value
Third graders explore place value to the ten-thousands place. In this amazing, 21-page place value lesson, learners represent numbers in standard and expanded form, and use technology to represent numbers to 9,999.
Curated OER
Problem Solvers
Fifth and sixth graders compare decimals to the place-value structure in the base-ten number system. They represent fractions as parts of unit wholes, as parts of a set, as locations on a number line, and as divisions of whole numbers....
Curated OER
Who's On First?
Have you ever considered why the number 10 is so important to us? That's what learners do here. They explore patterns formed by powers of ten and by decimals, convert units of measure within the metric system, and express these in the...
Curated OER
Number and Number Relations: Lesson 1
In a detailed format, this plan walks learners through an introduction to place value. They explore place value words and concepts and recognize patterns in the number system. Students identify a number when given a number word. They use...