Bellringer GOFORM Error Analysis

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Presentation transcript:

Bellringer 9.7.17 GOFORM Error Analysis *Select the error for each worked problem *Solve this problem correctly.

Bellringer~ Error Analysis 5 is the hypotenuse, and they subs. as a side in the formula. 3 squared isn’t 6 it is 9 Just subtracted sides-formula requires sides to be squared The sqrt of 16 is 4 not 8

Agenda Learning Target *Complete Pythag Tasks 10 mins. *Present Task Solution Paths (15-20 mins.) *QUIZLET LIVE or KAHOOT *Finish IXL work distance and solve for leg Learning Target I can apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.

3rd Agenda Learning Target *Finishing IXL solve leg and distance *QUIZLET LIVE or KAHOOT Learning Target I can apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.

Take 10 mins to work on finding hypotenuse Student helpers:

Take 10 mins to work on finding hypotenuse Student helpers:

Take 10 mins to work on finding hypotenuse Student helpers:

Take 10 mins to work on finding hypotenuse Student helpers:

Take 10 mins to work on finding hypotenuse Student helpers:

But first, can you…

Or this little gem…

Math Task Challenge Your team will be solving various tasks. You need to sketch a picture and label it accurately. Then, apply the Pythagorean Theorem to solve. Finally, make any adjustments (measure conversions, etc.) and do a quick write of 1-3 sentences explaining the solution.

Each person in group needs to speak about a specific part of Each team will present a solution to a task. Each person in group needs to speak about a specific part of the process of solving. Ex: #1 explain the drawing; #2 explain how the values were substituted into Pythag; #3 math calculations #4 explain any conversions (feet to miles)

Math Task Challenge 3rd Block 1. Frank Rd and James Rd. make a perpendicular intersection. The state wants to build a new road. The new road will intersect 3 miles north of the intersection on Frank Rd. and 4 miles west of the intersection on James Rd. How long will the new road be that intersects Frank and James Rd? The new road would cost $10,000 per mile to pave. What would be the cost of the new road? Draw it! Perpendicular definition? Plot a point 3 miles north of intersection. Plot point 4 miles west of intersection.

Math Task Challenge 1. Frank Rd and James Rd. make a perpendicular intersection. The state wants to build a new road. The new road will intersect 3 miles north of the intersection on Frank Rd. and 4 miles west of the intersection on James Rd. How long will the new road be that intersects Frank and James Rd? The new road would cost $10 per foot to pave. What would be the cost of the new road?

Math Task Challenge 2. The mobile phone company is anchoring wires to the top of their 1200 ft high communication towers. The cable for the support wire comes in a roll that is 3900 ft long. The company requires you to use the entire roll. The cable can only be cut twice to ensure its strength. All cables need to be equal. How long will each cable be and how far from the base of the tower do they need to be anchored?

Math Task Challenge 3. In the city planning meeting, a scale drawing of a park was drawn. The park fills inside a square city block. The scale was 3 inches equal 3/10 miles. One side of the city blocks was 4 inches in the drawing. One member of the city planners said, " There needs to be a short cut through the park from the corners." How long in miles will the short cut be? Round answers to the nearest tenth of a mile.

Math Task Challenge 4. You are planning to put a new digital flat TV on a wall that is 12 ft long and 9 ft high. The digital TV has a diagonal of 72 inches. The length of the TV is twice the width of the TV. How much of the wall will still need to be decorated around the TV?

2. 64.3 sq in length rounded to 5ft total area for TV is 15 sq ft Pythagorean Math Tasks Solutions Answers 5 miles long cost $50,000 2. 64.3 sq in length rounded to 5ft total area for TV is 15 sq ft remaining area around TV is 93 sq ft.

2. 1300 ft cables, 500 ft from the tower about 6/10 miles Pythagorean Math Tasks Solutions Answers 5 miles long cost $264,000 2. 1300 ft cables, 500 ft from the tower about 6/10 miles 3. 32.2 sq in width rounded to 3 ft 4. 64.3 sq in length rounded to 5ft total area for TV is 15 sq ft remaining area around TV is 93 sq ft.

Show your work on a piece of paper. You will be turning in your work. Review Kahoot Show your work on a piece of paper. You will be turning in your work. https://play.kahoot.it/#/k/44516a38-1179-4dd5-9f7c-8e2f23081666

Work on finishing IXL & Evidence of Study Can you… Solve for a hypotenuse? Solve for a leg? Plot points? Find the distance between two points? Solve a word problem involving Pythagorean Theorem?