The last new standard of this quarter is measuring weight and liquid volume in metric units. This standard requires students to reason about the units of mass (grams and kilograms) and volume (liters and milliliters). Students will explore and develop an understanding of the size and weight of a liter, a gram, and a kilogram by weighing classroom objects and filling containers of various capacities. 

Examples of activites that the students will engage in include: 

• identifying objects that weigh about 1 gram, 10 grams,  100grams, and 1 kilogram

• using graduated cylinders to measure the capacity in containers such as lunch sized milk containers

• estimating the weight of various classroom objects such as pencils, markers, crayons, glue sticks, papaerback books, ect.

• using balance scales to find the actual weight of common classroom objects listed above

Students will also add, subtract, multiply, and divide to solve one step problems involving masses or volumes of the same units.  

Examples of word problems that the students will engage in include: 

— Mrs. Cobelli buys 453 grams of strawberries. She has 23 grams left after making smoothies for her family. How many grams of strawberries di ddshe use to make smoothies?

— Jane and her 8 her friends go apple picking. They share what they pick equally among themselves. If the total weight of the apples they picked was 27 kg, how many kilograms will Jane take home?