Hi sherryb,
to the site!
I can't tell for sure if you plant is
Swiss Cheese Philodendron (Monstera adansonii),
Mini Monstera (Rhaphidophora tetrasperma),
Split-Leaf Philodendron (Monstera deliciosa), or perhaps something else.
A photo showing the entire plant, soil and how the plant is potted can often help in evaluating issues but the problem is likely moisture related. Yellowing leaves can be a sign of both over watering and under watering. When grown as a container plant they all require pots with drainage holes and a light airy potting medium. When watering, you should thoroughly saturate the entire soil mass until water is freely exiting the drainage holes of the pot and then empty all excess water from the catch tray.
Brown, crispy leaf margins can be a sign of dry air. These plants enjoy humidity which can be achieved by sitting the pot atop a tray of moist gravel/pebbles. Always keep a small amount of water in the catch tray; as it evaporates it raises humidity around the plant.
