Calendar Tues., 12/2 Topic: Speed Homework: Wear/bring warm clothes tomorrow, too To Do Flip to blank pg. 94. Get out a ruler if you’re picky about straight.

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Presentation transcript:

Calendar Tues., 12/2 Topic: Speed Homework: Wear/bring warm clothes tomorrow, too To Do Flip to blank pg. 94. Get out a ruler if you’re picky about straight lines. Get out Calendar Pencil Comp book FYI

Calendar Tues., 12/2 Topic: Speed Homework: - Wear/bring warm clothes tomorrow, too - Work on Science Fair trials (data due on 12/19) To Do Flip to pg. 94. Get a ruler if you’re picky about straight lines. Get out Calendar Pencil Comp book Cellphone or watch or music player (optional) Ruler (optional) FYI

Number of ruler flips Distance (cm)Time (seconds)Speed (distance time) Pg. 94 (take up the whole page) ROTATING ROLES: Path engineer, driver, distance measurer, stopwatch operator, math expert

Path #Distance (cm)Time (seconds)Speed (distance time) Pg. 94 (take up the whole page) ROTATING ROLES: Path engineer, driver, distance measurer, stopwatch operator, math expert

Pg. 95 (set up as Cornell notes, titled Speed) Distance: the total length (km, m, cm) traveled; the total length of the path from start to end

Pg. 95 (set up as Cornell notes, titled Speed) Time: a measurable period (h, min, s)

Pg. 95 (set up as Cornell notes, titled Speed) Rate: a quantity compared to another quantity Examples (do not need to write): Crime rate (number of crimes PER year) Pay rate (dollars earned PER hour) Rate of travel AKA speed (distance PER time, like miles PER hour or centimeters PER second)

Pg. 95 (set up as Cornell notes, titled Speed) Speed: the rate something travels, calculated by distance divided by time Speed = distance time

Pg. 95 (set up as Cornell notes, titled Speed) MPH (Miles/hour): the common measurement for the speed of vehicles in the United States; expresses how many miles a car will travel in 1 hour Speed = distance time 65 MPH = 65 miles 1 hour

Number of ruler flips Distance (cm)Time (seconds)Speed (distance time) Think about it… (Go over the data to see if we understand what it’s telling us)

Path #Distance (cm)Time (seconds)Speed (distance time) Think about it… (Go over the data to see if we understand what it’s telling us)