How would you solve: 5 + (4 x 3 +6)?
I can solve 5 + (4 x 3 + 6) by using the Order of Operations. The Order of Operations states the order that should be used to solve an equation. The acronym used to remember the order is: PEMDAS (Parenthesis, Exponents, Multiply, Divide, Add, and Subtract). So 5 + (4 x 3 + 6) = 5 + (12 + 6) = 5 + 18 = 23.
How can you determine if 125 is greater than, less than, or equal to 152?
I can determine the answer by using place value. Both numbers have 1 hundred in the hundreds place which equals one hundred. So the value is the same. The number 125 has a 2 in the tens place which means there are 2 groups of ten which also equals twenty. However, the number 152 has a 5 in the tens place which means there are 5 groups of ten which also equals fifty. I know that fifty is more than twenty so I can conclude that 152 is greater than 125. I can also show my answer as: 125<152. Here, I see that the alligator's mouth is open to eat the greater number!!
How would you use word parts to teach vocabulary?
Common English prefixes (un-, re-, in-, dis-) gives students clues to more than half of all the English words with prefixes. Prefixes are relatively easy to learn because their meanings are clear. For instance, un- means "not" and re- means "again". They are usually spelled similarly from word to word and they are always at the word's beginning. To determine what the vocabulary word "unbelievable" means, one should explain that the prefix un- means "not"; therefore, "unbelievable" means not believable. To determine what the vocabulary word "rewrite" means, one should explain that the prefix re- means "again"; therefore, "rewrite" means to write again. Suffixes can be more challenging to lean because their meanings are more abstract than prefixes. For instance, -ness mans "the quality or state or" something. Other suffixes are easier to figure out such as -less with means "without." Teachers should teach word roots as they occur in texts as well as teaching those root words that are most likely to be encountered.