January+13+-+Holy+Trinity

Below are the lessons used on January 13th at Holy Trinity.

Grade 6 **__ Using Estimation in Problem Solving __**

** Know: ** rounding, estimation, adding/subtraction, place value (tenths, hundreds, thousands) ** Do: ** adding subtracting rounding ** Learning Goal: ** Use estimation and rounding when solving problems using adding and subtracting of decimals to find reasonableness of an answer

**// NB: In a math problem solving lesson, the learning goals is not revealed at the onset to prevent “leading” the student. //**// It should be developed in the debrief with the students who may “discover” it (constructivist method). //

** Getting Started Activity: ** (Activation of prior knowledge)

Mori used a calculator to add 7.45 and 2.39. The calculator display showed 31.35. Is this reasonable or not?

** Working on it: ** (Students work in pairs with chart paper to solve the problem)

Each day Giovanna earns $18.00 walking dogs. She finds a flyer on route and wonders how many days of dog-walking it will take to buy the snowboarding equipment. (Snowboard – $59.95, boots – $24.95, helmet -$22.90) About how many days of dog walking will it take her to buy all of the above items?

Grade 6 - Decimals Minds-On: Working On It: Consolidation:

Grade 6 - Decimals Minds-On: Working On It: Consolidation: