The space between the books should be 6 inches apart The plastic knives should be parallel to your books.

Slides:



Advertisements
Similar presentations
Forces and moments Resolving forces.
Advertisements

WATCH THIS
Similar and Congruent Figures. Similar figures have the same shape, but not the same size. They must have the same ratio of side lengths Congruent figures.
Newspaper Towers by Robert Chen Engineering/Construction/Challenge Elementary or High School Spring 2013.
Lesson 8.6.  Rename 1 hundred for 10 tens, and then tell me how many hundreds, tens, and ones. Ready?  101 = ____ tens, _____ ones  10 tens, 1 one.
Triangles Shape and Space. Area of a right-angled triangle What proportion of this rectangle has been shaded? 8 cm 4 cm What is the shape of the shaded.
Special Right Triangles
Triangles can be sorted in different ways.  One way is by the length of their sides. Examine, or look closely, at the triangles in this picture. What.
The Pythagorean Relationship
Review What do we call any shape with 4 sides?. A quadrilateral “quad” means 4 “lateral” means side.
Polygons with four sides
6.2 Properties of Parallelograms
Bridging the Gap: Building Bridges 101, It Is Time to Get To Work
Warm-up Finish the back page of your homework!!! 15 minutes if you are done early you need to compare answers with a neighbor/friend.
AREA OF A TRIANGLE. Given two sides and an included angle:
 The class scored the following scores on the test: 20, 92, 82, 85, 92.  Median? Mean? Mode?  Is the mean or median more useful in this situation? Why?
Exploring Coulomb’s Law for charged particles. Charge Detector Construction.
5.3 Kites and Trapezoids. Kite Investigation Recall the shape of a toy kite. What definition would you write to describe the shape in geometric terms?
Cross Sections. Warm Up On a separate piece of paper, try to draw a triangle with side lengths of 3 centimeters and 6 centimeters, and an included angle.
Warm-Up. Properties of Parallelograms Discover properties of parallelograms Learn new vocabulary related to vectors Practice construction skills Develop.
FLOSSING TECHNIQUES FLOSSING AFTER COMPLETING THIS SLIDE SHOW YOU WILL PRACTICE FLOSSING YOUR OWN TEETH UNTIL PROFICIENT.
constructions Construct a triangle PQR having PQ = 7 cm,  RPQ = 30 º and  PQR = 57 ºTask:  Draw a rough sketch of the triangle. Making a Rough Sketch:
Structures Physics Grade 6/7. What is the coolest structure you can think of?
Geometric Shapes Tangram Activities The University of Texas at Dallas.
Lesson 8.4 Area of Triangles Pages How do you find the area of a triangle? Draw a triangle on the grid paper. Enclose the triangle in a rectangle.
A quadrilateral is any 2- dimensional, four- sided shape.
You are Master of the Word. Be sure to read the directions in each problem.
Pre-Requisite Information Pre-Calculus Day 1. Standard Form Ax + By= C NO FRACTIONS A cannot be negative Slope is –A/B Parallel Lines Perpendicular Lines.
6.6 – Use Proportionality Theorems. Triangle Proportionality Theorem If a line parallel to one side of a triangle intersects the other two sides, then.
9-3: Classifying Polygons Logic Activity. I am a trapezoid I have two angles that each measure 45˚ I have two other angles that each measure 135˚ #1)
Exploring Structural Engineering Fundamentals.
Exploring Structural Engineering Fundamentals.
Integrated 2 Activity May 12, Find a Group  Get your gumdrop domes from yesterday  Get into groups of 3 (NO MORE, NO LESS!!!)  Answer the following.
Let’s see what we can figure out. Each group should have a different Quadrilateral. Your Mission: Find all properties of your shape. (ie: find everything.
Which shape column is the strongest?
 Right Triangle – A triangle with one right angle.  Hypotenuse – Side opposite the right angle and longest side of a right triangle.  Leg – Either.
The Two Piece Tangram The Two Piece Tangram. Use a ruler to measure half way along one edge. Join the mid-point to the opposite corner.
HOW TO MAKE A PAPER CRANE. Step 1: Hip To Be Square  For this project you will need 1 square piece of paper (preferably origami paper)*, and nimble fingers.
Sit at tables Take notes on how to construct a Tetrahedron Kite.
Geometry Origami - Angelfish
Example Draw and reflect an isosceles triangle
Example Draw and reflect an isosceles triangle
Constructing parallel lines
4 More about 3-D Figures Case Study 4.1 Symmetry of 3-D Figures
Which Paper Column Can Hold Up The Most Books? Challenge 1 and 2
Exploring Structural Engineering Fundamentals
Geometric Shapes Tangram Activities The University of Texas at Dallas.
Drafting Tool Practice
Cut out each shape and stick it in your homework book.
6-2B Proving Quadrilaterals Are Parallelograms
Draw Quadrilaterals MAFS.3.G.1.1.
Polygons with four sides
Exploring Structural Engineering Fundamentals
Vectors and Scalars.
INTERPENETRATIONS AND DEVELOPMENTS
Grade 4 - Identify Quadrilaterals
Geometry Origami - Nightingale
All About Shapes! Let’s Go!.
Exploring Structural Engineering Fundamentals
Shapes Polygons and Quadrilaterals
Topic 6 and 7 Designing with Forces and Stable structures
Exploring Structural Engineering Fundamentals
Unit 9. Day 17..
What is geometry ? Geometry (from the Ancient Greek: γεωμετρία; geo- "earth", -metron "measurement") is a branch of mathematics concerned with questions.
Split into this number of triangles
A test of Engineering and Cooperation Skills
Mod 28 F.
Bridge Challenge.
Warm Up Find the slope of the line through each pair of points.
Similar and Congruent Figures. Similar figures have the same shape, but not the same size. They must have the same ratio of side lengths Congruent figures.
Presentation transcript:

The space between the books should be 6 inches apart The plastic knives should be parallel to your books

Strengthen the arch design to hold more weight. You must use 2 more pieces of paper and…. Books should be 6 inches apart You may NOT tape the paper to the table or the books One piece of paper MUST be folded The weight (plastic kinves etc) should be parallel to the books and in the middle

 On your paper, sketch what happens to each shape you gently apply force (with your finger) at each green arrow.

BEFORE

 The TRIANGLE is the only shape that won’t collapse!  WHY?

 The other shapes collapse because the angles between the structural members change.

 The TRIANGLE cannot collapse because the angles are fixed based on the opposite side length. A C B ab c

 All other shapes can be deformed because the angles are not fixed. Draw these shapes in a way that will keep them from collapsing.

 Make TRIANGLES!

 The same thing applies in 3D

Exploring Structural Engineering Fundamentals