Angles - Acute, Obtuse, Straight and Right

An angle measures the amount of turn Names of Angles As the Angle Increases, the Name Changes: Try It Yourself: Also: the letter "A" has an acute angle. Be Careful What You Measure Positive and Negative Angles When measuring from a line: a positive angle goes counterclockwise (opposite direction that clocks go) a negative angle goes clockwise Example: −67° Parts of an Angle The corner point of an angle is called the vertex And the two straight sides are called arms The angle is the amount of turn between each arm. How to Label Angles

Math and Science For Children - Pre - K , Kindergarten to 7th Grades Shapes Place Value - Scootle Compare and Order Decimals Arrays Factors of a Number: Scootle Add, Subtract or Multiply Fractions Volume and Capacity NAPLAN 2012 Teaching Strategies Strategies Students can: measure the volume of a rectangular prism using informal units measure volume using cubic centimetres Activities to support the strategies Activity 1 Units to measure volume Materials Required: A variety of small boxesBase 10 cubes (ones) Collect a variety of small boxes e.g. match boxes, chalk boxes, 'popper' cartons. Volume is the amount of space occupied by an object e.g. Discuss: Which model was made from the most cubes? A centicube has a height = 1 cm length = 1 cm breadth = 1 cm A centicube has a volume of one cubic centimetre. Activity 2 Comparing volumes Students are given some plasticine or blu-tack and make three cubes, each 1 cm long, 1 cm wide and 1 cm high. Do all these cubes have the same volume? Is the amount of material in the sphere, equal to what was in the cube? What is the volume of the rectangular prism? Activity 3 Measuring Volume Students work in pairs and make a chart of facts about cubic centimetres. Cubic centimetres Measuring volume Further Activity