2018 Solutions to Homework Set

Math 180B Homework 7 Solutions

“Homework Feedback Is…”: Elementary and Middle School Teachers’ Conceptions of Homework Feedback

This study explored mathematics teachers' conceptions of the homework feedback focusing on four key aspects: definition, purpose, types, and perceived impact. Forty-seven teachers from elementary and middle schools participated in six focus groups. Data were analyzed using content analysis. To enhance the trustworthiness of findings, classroom observations were used for triangulation of data. P...

CS 1951-k and CS 2951-z: Homework 3

Effects of Annotations and Homework on Learning Achievement: An Empirical Study of Scratch Programming Pedagogy

In Taiwan elementary schools, Scratch programming has been taught for more than four years. Previous studies have shown that personal annotations is a useful learning method that improve learning performance. An annotation-based Scratch programming (ASP) system provides for the creation, share, and review of annotations and homework solutions in the interface of Scratch programming. In addition...

CSCI 3320 : Homework 2 , Spring 2017 Teacher :

1. Sampling Distribution of means. A population consists of the five numbers 2, 3, 6, 8, and 11. Consider all possible samples of size 2 that can be drawn with replacement from this population. Find (a) the mean of the population, (b) the standard deviation of the population, (c) the mean of the sampling distribution of means, and (d) the standard deviation of the sampling distribution of means...