Math Games

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
• modelling and describing the relationship between the units g and kg
• estimating mass using referents
• measuring and recording mass

• Provide a personal referent for one gram and explain the choice.
• Provide a personal referent for one kilogram and explain the choice.
• Match a standard unit to a referent.
• Explain the relationship between 1000 grams and 1 kilogram using a model.
• Estimate the mass of an object using personal referents.
• Determine and record the mass of a 3-D object.
• Measure, using a scale, and record the mass of everyday objects using the units g and kg.
• Provide examples of 3-D objects that have a mass of approximately 1g, 100g, and 1kg.
• Determine the mass of two 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.