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The old website (orecity.k12.or.us) will remain online in its current state until May, 2015. All new content and page edits will be made on the new site.
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Place Value and Number Sense Activities
This page contains resources and activities to help develop the number sense and place value understandings of students at all levels.
- Counting with Base 10 Blocks (K-3) - An interactive website where students build a specified number using 100s, 10s, and 1s. The site incorporates auditory, symbolic, base 10 and number line representations. Great for smartboards and independent practice!
- Place Value Cards (1-4) - This site models expanded notation with cards and base 10 blocks.
- Place Value Sharks (1-3) - Count the base 10 blocks and identify the number. You can choose the magnitude of the numbers. Great for independent practice!
- Place the Penguins (1-3) - Students drag the penguins onto the board to represent numbers with expanded notation.
- Splat Squares (K-3) - Interactive Hundred Grid - Good for Smartboard lessons
- 100s Board Bone Hunt (1-4) - Locate numbers on an empty 100s board. Tricky!
- The Largest Number Game (2-6) Customizable to the number of digits, greatest digit, and discard spaces. The numbers you discard still count, so this game requires some extra thinking!
- The Estimator (K-6) - Develop Number Sense by estimating a point along a number line. You control the scale (endpoint) of the number line.
- Estimating Quantities (2-6) - Interactive site for students to estimate quantities, area, and number lines as 'greater than' or 'less than' a given amount. Three levels for students to explore.
- Make 24 (3-8) - Interactive game to practice basic number sense and order of operations.
- Order of Operations (5-8) - Create increasingly more complex equations, mindful of order of operations.
- Connect Four (5-8) - Two player interactive game to review order of operations.
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