Download Presentation
## Monday, April 21, 2014

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -

**Monday, April 21, 2014**POTD At the grocery store, Mr. West bought 3 types of cheese. He bought ½ a pound of Swiss cheese, ¼ a pound of American cheese, and ¼ a pound of Pepperjack cheese. What best describes the amount of cheese Mr. West bought? • Less than a pound • More than 2 pounds • Exactly one pound • Between one pound and two pounds**4.G.1**Drawing and identifying points, lines, angles, and rays**Point**C Point C ‘C’**Line**A line that continues without end Z Y Line YZ YZ**Line Segment**A line with 2 end points R S Line Segment RS RS**Ray**A line with one endpoint C B Ray BC BC**Perpendicular Lines**f g Lines that make a 90° angle. Line g⊥ Line f**Parallel lines: -Two lines, equal distance apart that will**never intersect- non-intersecting lines**Acute Angle**Angles that measure less than 90°**Right Angle**Angles that measure exactly 90° 2 perpendicular lines form a 90 angle**Obtuse Angle**Angles that measure more than 90° but less than 180°**Straight Angle**Angles that measure exactly 180°**A Reflex Angle**More than 180° but less than 360°**This picture is made mostly of which of the followinga.**obtuse angles and diagonal line segments b. right angles and circles c. acute angles and intersecting line segmentsd. right angles and straight line segments**Which part of this picture shows parallel lines?**• Bird’s beak • Train tracks • Wheels of the train cars • Worm**Which of the following times on the face of a clock show an**hour hand and a minute hand that are perpendicular? • 10:00 and 2:00 • 3:00 and 6:00 • 3:00 and 9:00 • 4:00 and 8:00**Name a street perpendicular and parallel to Wilmington**Street**What is the relationship between Wilmington and Hartford**Streets?**Oliver drew the figure below to show light traveling from**the Sun to Earth. Name the figure he drew**The time on Evan’s watch reads 6:00. What is the measure**of the angle made by the hour and minute hand? • The hands on a clock show the time as 3:00. How can you classify the angle formed by the hands? • Marcus drew a straight line. How can he classify the angle? • The hands of a clock show 12:25. What best describes the angle between the hands of a clock.**GUIDED**• What series of commands would produce a square? How many degrees are the angles? What is the measure of the resulting angle? • What would be the commands for an equilateral triangle? How many degrees are the angles? What is the measure of the resulting angle? • Draw two different types of quadrilaterals that have two pairs of parallel sides? • Is it possible to have an acute right triangle? Justify your reasoning using pictures and words. • How many acute, obtuse and right angles are in this shape?**GUIDED**• Draw and list the properties of a parallelogram. • Draw and list the properties of a rectangle. • How are your drawings and lists alike? • How are they different? • Cara drew three line segments. Two line segments share the same endpoint. The third line segment is parallel to the first line segment and intersects the second line segment. • Make a drawing similar to the one Cara drew.**CORE/WORKSHOP**4TH Grade Wiki Assignments**Tuesday, April 22, 2014**POTD Solve for J ¾ x 4 = J • 12/16 • 4 • 3 • 3/16**4.G.2**Sorting and Classifying**Shape Properties**• Parallelogram-Four-sided shape with two sets of parallel sides • Square-Four sided shape with equal sides • Rectangle-four-sided shape with opposite side’s equal lengths • Rhombus- Four Sided shape with equal length sides but not right angles • Trapezoid- A quadrilateral with exactly one pair of parallel sides. • Equilateral Triangle-Three sided shape with 3 equal length sides and equal angles inside • Isosceles Triangle- Three sided shape with two equal length sides • Right Angle Triangle- three sided shape with a right angle • Scalene Triangle-A three sided shape with all sides different lengths**Discussion Topics**• According to the definition of a trapezoid, a parallelogram cannot be a trapezoid. Explain why. • Explain why a rectangle is ALWAYS a parallelogram. • Explain why all squares are quadrilaterals. • Explain why every trapezoid is a parallelogram. • Explain why all squares are rectangles, but not all rectangles are squares.**Which shape is in the wrong place? Explain!**At Least one Right Angle At Least one Set of Parallel Sides**Of these shapes, which have parallel sides?**• Of these shapes, which have perpendicular sides?**Test Prep**• If Joey is asked to name a quadrilateral that is also a rhombus, what should be his answer? • Square • Rectangle • Parallelogram • Trapezoid • Which capital letter appears to have parallel line segments? • D • L • N • T • Which quadrilateral has exactly one pair of parallel sides? • Square • Rhombus • Parallelogram • Trapezoid**Stephen drew this triangle. How many obtuse angles does the**triangle have? • Joan was asked to draw a right triangle. How many right angles are in a right triangle? • Which capital letter appears to have perpendicular line segments? • N • O • T • V**Nolan drew a right triangle. How many acute angles did he**draw?**Core/Workshop**4TH Grade Wiki Assignments**Wednesday, April 23, 2014**POTD Inchantis has 20/100 blue marbles and 6/10 red marbles. How many blue and red marbles does Inchantis have? • 26/10 • 26/100 • 4/5 • 8/100**4.G.3**Symmetry**Symmetric figures are figures that can be folded to make two**halves that are congruent (same) to each other • The lines that divide a symmetric figure into congruent halves are called lines of symmetry • This square has 4 lines of symmetry. If you fold the square, the two halves will lie on top of each other.**Triangles**Triangles can have 3, 1, or 0 lines of symmetry**Regular Polygon- a shape with 2 or more EQUAL sides (square,**pentagon, hexagon) • The number of lines of symmetry of a regular polygon is always the same as the number of edges. An Equilateral triangle Would have how many lines of symmetry? A regular hexagon would have how many lines of symmetry? A regular octagon would have how many lines of symmetry?