2.9 The student applies mathematical process standards to select Instructional Considerations and use units to describe length, area, and time. The student is expected to: Current TEKS New 2nd grade TEKS Current TEKS New 3rd grade TEKS 2013-14 2014-15 2.9A identify concrete models 2.9E determine a solution to a 3.11B use standard units to find 3.7B determine the perimeter of that approximate standard units problem involving length, the perimeter of a shape a polygon or a missing length of length and use them to including estimating lengths when given perimeter and measure length remaining side lengths in problems 2.9B select a non-standard unit 2.9F use concrete models of NONE of measure such as square tiles square units to find the area of a to determine the area of a rectangle by covering it with no surface gaps or overlaps, counting to find the total number of square units, and describing the measurement using a number and the unit read and write times read and write time to the tell and write time shown determine the solutions to 2.10B 2.9G 3.12B 3.7C shown on analog and digital nearest one-minute increment on analog and digital clocks problems involving addition and clocks using five-minute using analog and digital clocks subtraction of time intervals in increments and distinguish between a.m. and minutes, using pictorial models or p.m.. tools such as a 15-minute event plus a 30-minute event equals 45 minutes
2.9 The student applies mathematical process standards to select and use units to describe length, area, and time. The student is expected to: Instructional Considerations Current TEKS New 2nd grade TEKS 2013-14 2014-15 Current TEKS New 3rd grade TEKS 2.9A identify concrete models that approximate standard units of length and use them to measure length 2.9E determine a solution to a problem involving length, including estimating lengths 3.11B use standard units to find the perimeter of a shape 3.7B determine the perimeter of a polygon or a missing length when given perimeter and remaining side lengths in problems 2.9B select a non-standard unit of measure such as square tiles to determine the area of a surface 2.9F use concrete models of square units to find the area of a rectangle by covering it with no gaps or overlaps, counting to find the total number of square units, and describing the measurement using a number and the unit NONE 2.10B read and write times shown on analog and digital clocks using five-minute increments 2.9G read and write time to the nearest one-minute increment using analog and digital clocks and distinguish between a.m. and p.m.. 3.12B tell and write time shown on analog and digital clocks 3.7C determine the solutions to problems involving addition and subtraction of time intervals in minutes, using pictorial models or tools such as a 15-minute event plus a 30-minute event equals 45 minutes
2nd_Grade_-_3rd_Grade_B.I.G._FINAL.docx