Al-Balawi, A. A., (2016). The level of difficulty of the strategic steps of solving verbal mathematical problems among middle school pupils from the teachers' point of view. Journal of the College of Education, 1(19), 81-100.
Khalaf Allah, M. M., (2013). The effectiveness of employing the mathematics lab in developing engineering thinking skills and achievement for seventh grade pupils in Rafah governorate [unpublished master's thesis]. The Islamic University of Gaza.
Al-Raheel, D. Al., & Jawarneh, T., (2020), the effectiveness of blended learning based on electronic games in improving mathematical thinking for fourth grade pupils. Journal of the Islamic University of Educational and Psychological Studies, 1 (28), 573-588.
Rajoub, M. F., (2017). The effectiveness of a training program for science education with an active education approach in acquiring concepts, critical thinking, and attitudes of eighth grade pupils towards active education [unpublished thesis]. Yarmouk University, Jordan.
Al-Zahrani, H. S., (2018). The effectiveness of designing a multi-media educational environment to treat the difficulties in learning mathematics (dyscyclolia) among primary school pupils, master's thesis, King Abdulaziz University. https://2u.pw/Pxbvq.
Saad, M., & Al-Maarj, S., (2019), Dyscalculia in children, a guide for teachers and parents (I 1). Dar Al-Ilm wa Al-Iman for Publishing and Distribution
Shoman, G. Sh., (2020). The use of manuals in teaching topology and its impact on the development of visual thinking and the trend towards mathematics for primary school pupils [Master’s thesis, Ain Shams University]. https://2u.pw/uYVLV
Al-Jabali, L. A., (2019). The effect of using manuals (number cards and dens pieces) in teaching operations on integer numbers in the achievement of sixth grade pupils. Journal of Educational Sciences, 4(46),542-554.
Alshehri, Z., (2009). Mathematics teachers’ beliefs about mathematical problems and their relationship to some variables, Mathematics Education Journal, 1 (12), 133-166.
Al-Shehri, N., & Al-Suloli, M., (2016). The effect of the teaching strategy by modeling on developing the mathematical problem solving skills of the sixth graders, 19(11), 20-21.
Sheikh Ahmed, Kh. I., (2013). The effectiveness of a proposed computerized interactive education program in addressing the poor achievement of fourth-grade pupils in mathematics in UNRWA schools in Gaza [unpublished master's thesis]. Gaza University.
Al-Ghamdi, I. A., (2020). The effect of using augmented reality on mathematics achievement among middle school pupils in Al-Baha region in the Kingdom of Saudi Arabia. Journal of the Islamic University of Educational and Psychological Studies, 2 (28), 823-849.
Al-Ghanimi, D., & Al-Hassani, S., (2020). The effectiveness of an educational program using virtual manuals on tablets to develop arithmetic skills for pupils with difficulties learning mathematics in Jeddah Governorate [Unpublished Master's Thesis]. Yarmouk University
Al-Mashaqbeh, F. A., (2017) The Impact of Using Deans’ Cuts in Teaching Mathematics on the Achievement of Fifth Grade Pupils in Jordan, Educational Sciences Studies. Jordan
Al-Fahd, N. A., (2015). The reality of using mathematics teaching aids in light of the requirements of developed mathematics books for the first intermediate grade, Mathematics Education Journal, 5(18), 202-266.
Al-Assaf, S. A., (2012). Introduction to research in behavioral sciences (I 2). Riyadh: Dar Al Zahraa for Publishing and Distribution.
ثالثا: المراجع الأجنبية
Day, L & Hurrell, D (2017). Food for thought the role of manipulatives in the teaching of fraction. Australian Primary Mathematics classroom, 4(22), 39-54.
Horan, E & Carr, M (2018).How much guidance Do Student Need? An intervention study on kindergarten mathematics with manipulatives. International Journal of educational psychology, 3 (7), 286-316
Larbi, E & Mabis, O (2016). The use of manipulatives in mathematics education. Journal of education and practice, 7 (36), 53 -66
Ndlovul, Z. A & Chiromo L (2019). Pre-service mathematics teachers' development process in using manipulatives in number operations. South African Journal of Childhood Education, 1-15.
Paliwal, V (2018).Do manipulatives foster pre-service teachers' understanding of probability? Current Issues in Middle level Education, 1 (23),1-18.
Satangi, R & Bouck, E (2015). Using virtual manipulative instruction to teach the Concepts of Area and perimeters to Secondary student with learning Disabilities. Leaning Disability Quarterly, 3 (38), 175 -189.