This study aims to improve the understanding of third grade elementary school students on time measurement material through the application of the Numbered Heads Together (NHT) learning model with board game media. The main problem in conventional learning is the low active involvement of students and the difficulty in understanding the concept of time concretely. This research is a Classroom Action Research (PTK) conducted in two cycles using the Kemmis and McTaggart model. The research subjects were 23 third grade students of SDN 1 Langon, Jepara. Data collection techniques included observation, interviews, tests, and documentation. The results showed a significant increase in student understanding, which was marked by an increase in the average score from 65.3 in the pre-cycle to 85.3 in cycle I, as well as an increase in learning completeness from 40% to 68%. Students were more active in discussions, motivated, and able to explain the concept of time independently. The NHT and board game model creates a collaborative and fun learning atmosphere and supports students' cognitive, social and emotional development. These results prove that educational game-based learning strategies are effective in improving the understanding of abstract mathematical concepts, especially time measurement.

Reading ability is a basic skill that every elementary school student must have, because through the reading process, children can learn various subjects better. The purpose of this study was to analyze the emotional involvement of elementary school students when reading adventure stories. Emotional involvement as a learning tool has been proven effective in increasing student interest and motivation, supporting the development of social and emotional skills, and improving critical and analytical thinking skills. The role of teachers and parents is very important in encouraging children's emotional involvement. Teachers can create a collaborative classroom environment, choose interesting books, and parents can set aside special time to read with their children at home. Teachers and parents need to work together to ensure that children get the support they need. This also has a significant impact on curriculum development, as interesting and relevant adventure stories are included in the curriculum to create a positive learning environment and encourage children's emotional involvement.