This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An open number can be used effectively for thinking about addition and subtraction. All of the ... (Read 16 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Feb 18, 2021

Question 1

All of the statements below represent the differences between invented strategies and standard algorithms EXCEPT:
◦ A range of flexible options.
◦ Left-handed rather than right-handed.
◦ Number oriented rather than digit oriented.
◦ Basis for mental computation and estimation.

Question 2

An open number can be used effectively for thinking about addition and subtraction. All of the reasons below support the use of an open number line EXCEPT:
◦ Is less flexible than a numbered line.
◦ Eliminates confusion with hash marks and spaces.
◦ Less prone to computational errors.
◦ Helps with modeling student thinking.
Elementary and Middle School Mathematics: Teaching Developmentally ¦ Van de Walle, Karp, Bay-Williams ¦ 10th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by theo on Feb 18, 2021

lgoldst9

  • Sr. Member
  • ****
  • Posts: 372
Reply #1 on: Feb 18, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


theo

  • Member
  • Posts: 698
Reply 2 on: Feb 18, 2021
YES! Correct, THANKS for helping me on my review

alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Left-brain thinking. Left-brain thinking.
OPEN GLOVING 4 OPEN GLOVING 4
Norman Bel Geddes, with Dr. Otto Koller, Air Liner Number 4. Norman Bel Geddes, with Dr. Otto Koller, Air Liner Number 4.
A series of two PET scans. A scan was done when the volunteer’s eyes were either open (left) or ... A series of two PET scans. A scan was done when the volunteer’s eyes were either open (left) or ...
Open palmar friction moving back and forth over the lumbar and thoracic regions. Open palmar friction moving back and forth over the lumbar and thoracic regions.
How mitosis maintains the chromosome number. How mitosis maintains the chromosome number.
Video: Primary Active Transport - electrochemical gradient and ion transport / water movement

For a complete list of videos, visit our video library