circle protractor or geometry software) Introduce the unit of measurement of a circle (degrees). Students need to understand that a whole circle is 360 degrees by taking a circle and dividing it into etc. so that is 360 divided by 2, Is 360 divided by 4, etc. 4.MD.C.5b An angle that turns Essential Skills and Knowledge through n one-degree angles is Knowledge that each angle said to have an angle measure of measure is a result of how much n degrees. of the circle is covered (e.g., shading in 50 parts of the 360 would equal a 50 degree angle) 4.MD.C.6 Measure angles in Essential Skills and Knowledge Before students begin measuring angles with protractors, whole-number degrees using a See the skills and knowledge that they need to have some experiences with benchmark protractor. Sketch angles of are stated in the Standard. angles. They transfer their understanding that a 360º specified measure. rotation about a point makes a complete circle to recognize and sketch angles that measure approximately 90º and 180º. They extend this understanding and recognize and sketch angles that measure approximately 45º and 30º. They use appropriate terminology (acute, right, and obtuse) to describe angles and rays (perpendicular). (As shared in the Arizona Academic Content Standards)
circle protractor or geometry software) Introduce the unit of measurement of a circle (degrees). Students need to understand that a whole circle is 360 degrees by taking a circle and dividing it into etc. so that is 360 divided by 2, Is 360 divided by 4, etc. 4.MD.C.5b An angle that turns through n one-degree angles is said to have an angle measure of n degrees. Essential Skills and Knowledge Knowledge that each angle measure is a result of how much of the circle is covered (e.g., shading in 50 parts of the 360 would equal a 50 degree angle) 4.MD.C.6 Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure. Essential Skills and Knowledge See the skills and knowledge that are stated in the Standard. Before students begin measuring angles with protractors, they need to have some experiences with benchmark angles. They transfer their understanding that a 360º rotation about a point makes a complete circle to recognize and sketch angles that measure approximately 90º and 180º. They extend this understanding and recognize and sketch angles that measure approximately 45º and 30º. They use appropriate terminology (acute, right, and obtuse) to describe angles and rays (perpendicular). (As shared in the Arizona Academic Content Standards)
Unit_4_MD_C_5_7_Angles_Angle_Measurement.docx