Metric System

• Objectives:• Today I will be able to:

• Understand the size and numerical relationship between the units in the metric system

• Informal assessment – monitoring student interactions as they complete the warm –up, category sort and scavenger hunt

• Formal assessment – analyzing student responses to the exit ticket and the price is right activity

• Common Core Connection• Model with mathematics • Look for and make use of structure

Lesson Sequence

• Evaluate: Warm-Up

• Explain: Metric System Notes

• Engage/Explore: Metric System Category Sort

• Explore/Elaborate: Metric System Scavenger Hunt

• Engage/Evaluate: Price Is Right

• Evaluate: Exit Ticket

Warm – Up (Day 1)

• Complete the “Estimation 1” column on the metric system warm up worksheet

Warm – Up (Day 2)

Objectives

• Today I will be able to:• Understand the size and numerical

relationship between the units in the metric system

Homework

• Study for the significant figures quiz on Thursday, September 11

Agenda

• Warm Up

• Metric System Notes

• Category Sort Activity

• Metric Scavenger Hunt

• Price is right

• Exit Ticket

Metric System

aka

International

System of Units (SI

System)

Why do we use the metric system?

• Easy to use mathematically

• More divisions – improves accuracy of measurements

• Used internationally – easier to communicate

There are 7 base units

• Length = meter (m)

• Mass = kilogram (kg)

- Gram is commonly used (g)

• Time = seconds (s)

• Temperature = Kelvin (K)

• Count/Quantity = mole (mol)

• Electric Current = ampere (A)

• Luminous Intensity = candela (cd)

Prefixes

• Giga (G) – 109

• Mega (M) – 106

• Kilo (k) – 103

• Hecto (h) – 102

• Deka (D) - 101

• Base Unit – 1

• Deci (d) – 10-1

• Centi (c) – 10-2

• Milli (m) – 10-3

• Micro (u) – 10-6

• Nano (n) – 10-9

• Pico (p) – 10-12

Metric Mneumonic• Kids Have Dropped Over Dead Converting

Metrics

• K = Kilo

• H = Hecto

• D = Deka

• O = One (base unit) – 1 gram, 1 liter, 1 meter

• D = Deci

• C = Centi

• M = Milli

Metric Category

Sort Activity

Directions

Metric Scavenger

HuntWork in a small group to find objects that fit

into the categories. We will have a class discussion about the answers

Price is Right

Follow Ms. Ose’s Directions for the game

Exit Ticket (1)

• Complete the “estimation 2” column on the metric system warm up/ exit ticket worksheet

• We will discuss any changes that you made to the values listed

• Icebreaker • If you could go back in time and change one

thing, what would you change? • Would you rather have to carry an egg (and

not let it break), or wear a motorcycle helmet, everyday for the rest of your life ?

Exit Ticket (2)

• Icebreaker• Would you rather live in an igloo or a

teepee?• Would you rather be the smartest

person in the world or the richest person in America?