There were sent a request to a school in the central of East-Norway to participate. The principal answered yes, and then asked the teachers at first grade if they would like to participate. The teachers were positive to the study, and therefore the students and parents were asked to participate. It was total 74 students and 54 of them accepted to participate in the study. The inclusion criteria of the study is that the participants talks and understand Norwegian approximate fluently. In this study that means one participant was excluded.~The study will use a design of randomized control trial (RCT) where the population of 53 students will be doing av screening-test. After the screening 20% of the lowest-performance will make up the sample and they will be departed in a clinical-group and a control-group. These students will then be tested with Test of Basic Arithmetic and Numeracy, the Norwegian test called Arithmetic fact-test, the vocabulary and calculation tasks from Wechsler Intelligence Scale for Children - Fifth Edition and Ravens colored progressive matrices. The randomization will be conduct using randomize.org and the parents will get information about which group their child will participate in. The intervention are eight week long with 4 lessons per week. Each lesson are about 45-50 minutes long. The start of the intervention will be in week 42, 2022 and end in week 49, 2022. The intervention-group will follow an intervention conducting elements from an education program called ThinkMath and self-developed tasks. The control-group will follow ordinary classroom-lessons. After ended intervention-period the students will be tested with the same test-battery as were used in front of the start point.
The aim of this study is to investigate the effect of an intervention program for low-performing first graders in mathematics. .