Students began to explore multiples last week and will explore factors this week. They will use their knowledge of factors to investigate the meaning of prime and composite numbers. Since we have a short week, we will spend all week working on just one standard - 4.OA.4. This standard requires students to be able to recognize and find factors and multiples of given whole numbers between 1 and 100 as well as determine if a given whole number between 1 and 100 is prime or composite.
4.1 Standards for the Week:
4.OA.4 - Find all factor pairs for a whole number in the range 1-100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1-100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1-100 is prime or composite.
4.2-Unit 6: Geometry
Students have picked up the skills of identifying and naming points, lines, line segments, and rays in addition to name and measuring angles with a nonstandard unit of measure (a wax paper circle). This week, students will take this knowledge and apply it to identifying and naming different types of triangles. Then, we will get into using an actual protractor. Using a protractor can be tricky, so we will be comparing the usage of the wax paper circle for measuring angles to the use of the protractor. Students will also demonstrate how to draw their own angles with given "degrees" using a protractor.
4.2 Standards for the Week:
4.G.1- Draw points, lines, line segments, rays, angles (acute, obtuse, right), and perpendicular and parallel lines. Identify these in two-dimensional figures.
4.G.2 - Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
5.1-Unit 2: Adding and Subtracting Decimals
This week students will review the first two standards of their new decimal unit, 5NBT1 and 5NBT3a (place value and reading/writing/expanding decimals respectively). 5NBT1 is a partial review from the previous unit, but we will also be focusing on the 'decimal side' of our place value chart (up to the thousandths) ,not just our 'whole number side' . We will also be introduced to two new standards this week, 5NBT3b (comparing decimals to the thousandths place) as well as 5NBT4 (rounding decimals). We will have lots of hands on ways to practice our skills this week, with one of our most important tools being our base 10 blocks that we will now view as decimals instead of wholes. Please note that the students DO have a quiz this week on Thursday, and that quiz will include all four standards taught both last week and this week.
5.1 Standards for the Week:
5.NBT.1 - Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.
5.NBT.3a - Read, write, and compare decimals to thousandths.
a. Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 = 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000).
5.NBT.3b - Compare two decimals to thousandths based on meanings of the digits in each place, using >, =,
and < symbols to record the results of comparisons.
5.NBT.4 - Use place value understanding to round decimals up to the hundredths place.