Nine-year-old Ricky has recently learned how to solve long division problems, and he still struggles with especially difficult problems. At his mother's request, Ricky helps his eight-year-old sister Lucy with the simple long division problems she must do for her math homework. Which one of the following is most likely to result?
a. Ricky's own long division skills will improve because he will internalize the instructions he gives Lucy.
b. Ricky will gain nothing from helping his sister because doing long division is outside his zone of proximal development.
c. Ricky's own long division skills will decrease, because any mistakes that Lucy makes will corrupt his own mathematical thinking.
d. By helping Lucy with her long division problems, Ricky will be able to practice using formal operational thinking skills.
Question 2
As a teacher, you want the students to improve their ability to learn from their textbooks. Considering research results described in the textbook, which technique should you use?
a. Reciprocal teaching
b. Authentic activities
c. Cooperative learning
d. Direct instruction
Nuclear division at the DNA level
This girl has a long leg cast, which was applied after surgery to correct her clubfoot.
Cell division protein FtsN
Long stroke used in lymphatic facilitation.
In ABC, A=90, b=3 cm, c=7 cm. Solve for all unknowns to the nearest tenth of a unit.
Jia's Fashions recently paid a $2 annual dividend. The company is projecting that its ...