Place Value
![Picture](/uploads/9/4/7/8/9478838/8388782.jpg?279)
In math this nine weeks, we have learned place value up to the hundred thousands place. We practiced using base-10 blocks, as seen in the picture. We also created place value charts to help us!
Rounding
![Picture](/uploads/9/4/7/8/9478838/8713216.png)
We have also learned rounding to the nearest ten, hundred, and thousand.
Comparing Numbers
![Picture](/uploads/9/4/7/8/9478838/1831227.gif)
Students learned how to compare numbers from 0-9,999 using the terms: "less than", "greater than", and "equal to". It is important to remember that the alligator mouth is always eating the bigger (or "greater") number.
Telling Time to the Quarter and Half Hour &
Telling Time to the Nearest Minute
![Picture](/uploads/9/4/7/8/9478838/3835882.gif)
Quarter past = 15 minutes past the hour
Half past= 30 minutes past the hour (or halfway around the clock)
Quarter to= 15 minutes until the next hour
*Remember to count by fives when looking at the big numbers & to count by ones when looking a the little marks in between the big numbers. We reviewed the fact that there are 60 minutes in one hour.
Half past= 30 minutes past the hour (or halfway around the clock)
Quarter to= 15 minutes until the next hour
*Remember to count by fives when looking at the big numbers & to count by ones when looking a the little marks in between the big numbers. We reviewed the fact that there are 60 minutes in one hour.
Equivalent Periods of Time
![Picture](http://education.weebly.com/editor/images/na.jpg)
Students learned to change units of time. We will continue to practice this skill as it is a struggle for many of our students.
60 seconds= 1 minute
60 minutes= 1 hour
24 hours= 1 day
7 days= 1 week
ABOUT 4 weeks= 1 month
ABOUT 30 days= 1 month
365 days= 1 year
12 months= 1 year
60 seconds= 1 minute
60 minutes= 1 hour
24 hours= 1 day
7 days= 1 week
ABOUT 4 weeks= 1 month
ABOUT 30 days= 1 month
365 days= 1 year
12 months= 1 year
Elapsed Time
![Picture](/uploads/9/4/7/8/9478838/6960827.gif)
Students were recently introduced to finding elapsed time or the amount of time that passes during two given periods of time.
Example: The first clock shows a "start time" of 10:00 and the second clock shows an "end time" of 2:00. The elapsed time between 10:00 and 2:00 is 4 hours (or 4:00).
Example: The first clock shows a "start time" of 10:00 and the second clock shows an "end time" of 2:00. The elapsed time between 10:00 and 2:00 is 4 hours (or 4:00).
Estimation
![Picture](/uploads/9/4/7/8/9478838/8261186.gif)
Starting this week, students will be practicing estimation. They will use their knowledge of rounding to find the estimate sum/difference of two or more numbers.
Example: If the problem reads: "Sally had 145 M&M's, but she gave 24 away, ABOUT how many M&M's does Sally have now?"
Step 1: 145-24= 121
Step 2: 121 rounded to the nearest ten is 120 /nearest hundred=100
Step 3: SO, Sally now has ABOUT 120 M&M's or 100 M&M's
Example: If the problem reads: "Sally had 145 M&M's, but she gave 24 away, ABOUT how many M&M's does Sally have now?"
Step 1: 145-24= 121
Step 2: 121 rounded to the nearest ten is 120 /nearest hundred=100
Step 3: SO, Sally now has ABOUT 120 M&M's or 100 M&M's
Math Facts & Inverse Relationships
![Picture](/uploads/9/4/7/8/9478838/2227524.jpg)
Students learned math facts and inverse relationships. For example, if 10+3=13, then 13-3=10 OR if 4 times 3 equals 12, then 12 divided by 3 equals 4. Students will use different models to count out groups, which will help them as they add, subtract, multiply, and divide.
Patterns
![Picture](/uploads/9/4/7/8/9478838/7405007.jpg)
Students have learned how to create number and shape patterns. We have been learning how to determine the rule for a given pattern. The students have also been introduced to "In" and "Out" boxes (seen to the left).
Lines and Angles
![Picture](/uploads/9/4/7/8/9478838/8161065.gif)
Students have been working on naming types of lines & identifying the characteristics of a line, line segment, ray, and several others. They are also working on identifying angles, such as a right angle, acute angle and obtuse angle.