as a foundational stage in shaping children’s
character, emotions, and future happiness (Ubaidillah
et al., 2023). At this stage, children's development is
significantly influenced by the quality of interactions
and experiences they receive (Wahidah et al., 2023).
Therefore, a learning approach that emphasizes
affection, empathy, and emotional warmth is
essential. A pleasant and supportive learning
environment not only encourages children to learn
enthusiastically but also helps them develop self-
confidence, social skills, and emotional stability,
which are important assets for their future lives
(Aliyah et al., 2025; Masriani & Liana, 2022).
Law Number 20 of 2003 on the National
Education System, Republic of Indonesia, Article 1,
Paragraph 14, states that early childhood education is
a development effort aimed at children from birth to
six years of age, carried out through the provision of
educational stimulation to support their physical and
spiritual growth and development, so that they are
ready to enter further education (Undang-Undang
Republik Indonesia, 2003). This educational
stimulation may be provided through formal, non-
formal, or informal education. Formal institutions for
early childhood include kindergartens (Taman
Kanak-Kanak, TK) and Raudhatul Athfal (RA); non-
formal institutions include playgroups (Kelompok
Bermain, KB) and childcare centers (Taman
Penitipan Anak, TPA); while informal early
childhood education refers to family-based education
organized within the community (Masriani & Liana,
2022).
Teachers in schools play a highly influential role
in the happiness of early childhood learners, as they
serve not only as educators but also as emotional
companions who help children feel safe, valued, and
supported throughout the learning process (Saepudin
& Rohmatillah, 2025). According to hamre and pianta
(2005), as cited by Hilaria et al (2021), the quality of
the relationship between teachers and children greatly
determines their emotional and social development,
which in turn significantly contributes to their
happiness and well-being in the school environment.
Furthermore, research by rimm-kaufman and hamre
(2010), as referenced in Saleh (2018), emphasizes
that positive interactions with teachers can boost
children’s self-confidence and strengthen social
bonds—foundational elements for happiness in early
education. Thus, teachers bear a strategic
responsibility in creating an environment that
supports not only academic development but also the
emotional well-being and happiness of young
children.
One of the most essential learning approaches
implemented by teachers in Early Childhood
Education (ECE) institutions is teaching by heart.
This approach highlights the importance of teaching
wholeheartedly—with love and sincerity—so that the
learning process is not merely the transfer of
knowledge, but also the building of strong emotional
bonds between educators and children. It places the
heart at the center of education, enabling teachers to
bring sincerity, compassion, and empathy into the
classroom, thus creating a warm and meaningful
learning atmosphere. According to alpiyanto (2014),
teaching by heart is an educational process grounded
in love and divine blessings from allah subhanahu wa
ta’ala, involving teaching with affection, heartfelt
sincerity, soulful devotion, gentle demeanor, honesty,
and a spirit that fosters happiness, peace, and
tranquility. It is carried out with patience, gratitude,
humility, simplicity, and deep respect for every
learner (Viona, 2022).
In the context of islamic education, teaching by
heart is especially relevant, as its values align with
the fundamental islamic principles of sincerity
(ikhlas), compassion (rahmah), and responsibility
(amanah) in nurturing future generations (Mujrimin
et al., 2025). The qur’an positions teachers not merely
as conveyors of knowledge, but also as moral
educators and spiritual guides. Its vision of a
professional teacher includes scientific expertise,
moral ethics, and a deep sense of responsibility
toward society (Fadhil et al., 2024). Through this
method, teachers become not only instructors but also
friends and emotional supporters who guide children
with full attention and create a warm atmosphere that
optimally stimulates their growth and development
(Setyowati et al., 2021). The teaching by heart
approach makes learning more meaningful and
heartfelt, reinforcing the foundation of positive
character from an early age.
Various research findings support the
effectiveness of the teaching by heart approach. A
study by Rahmawati (2016) revealed that teachers
who apply this approach with sincerity and
compassion are able to significantly enhance
children's learning motivation and emotional
engagement. Furthermore, Ulwan, (2007) indicated
that this approach also has a positive impact on
shaping children's character and fostering strong
spiritual values from an early age. In the field of
islamic education, findings by Kurniati (2022) further
emphasize that the presence of teachers as moral
exemplars—through their caring and responsible
attitudes—greatly contributes to the development of
noble character in children. Thus, teaching by heart