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Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level

The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.

Green box means correct.

Yellow box means incorrect.

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Grade 3 - Shape and Space

Standard 3.SS.4 - Practice finding the appropriate weight of various objects. Understand the approximate scale of different metric units.

Included Skills:

Demonstrate an understanding of measuring mass (g, kg) by:

• selecting and justifying referents for the units g and kg

• modeling and describing the relationship between the units g and kg

• estimating mass using referents

• measuring and recording mass.

• Achievement Indicators

• Students who have achieved this outcome(s) should be able to:

- Provide a personal referent for one gram and explain the choice.

- Provide a personal referent for one kilogram and explain the choice.

- Match a given standard unit to a given referent.

- Explain the relationship between 1000 grams and 1 kilogram using a model.

- Estimate the mass of a given object using personal referents.

- Determine and record the mass of a given 3-D object.

- Measure, using a scale, and record the mass of given everyday objects using the units g and kg.

- Provide examples of 3-D objects that have a mass of approximately 1 g, 100 g and 1 kg.

- Determine the mass of two given similar objects with different masses and explain the results.

- Determine the mass of an object, change its shape, re-measure its mass and explain the results.

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